{
  "apiVersion": 1,
  "kind": "work-order",
  "purpose": "Taking the firearm apart for a job such as refinishing, and putting it back together to specification.",
  "firearm": {
    "slug": "ithaca-37",
    "name": "Ithaca Model 37",
    "manufacturer": {
      "id": "ithaca",
      "name": "Ithaca Gun Company"
    },
    "category": "shotgun",
    "action": "pump-action",
    "calibers": [
      "12 gauge",
      "16 gauge",
      "20 gauge",
      "28 gauge"
    ],
    "alsoKnownAs": [
      "Model 37 Featherlight",
      "Ithaca 37 Deerslayer"
    ],
    "coversAlso": [
      "Ithaca 37 Featherlight",
      "Ithaca 37 Deerslayer",
      "Ithaca Model 87 (later production)"
    ],
    "page": "firearms/ithaca-37.html",
    "bundle": "api/v1/firearms/ithaca-37.json",
    "lastUpdated": "2026-10-29"
  },
  "notices": [
    "Ithaca Gun Company limits owner disassembly: Barrel, magazine cap, magazine spring and follower, yoke, and forend/slide (slide pin). The trigger group is not covered.",
    "This work order is written for the Ithaca Model 37. It is reported to cover Ithaca 37 Featherlight; Ithaca 37 Deerslayer; Ithaca Model 87 (later production) — if the firearm on the bench is one of those, check the torque notes: values do not always carry over.",
    "No torque values are recorded for this firearm. Get them from the manufacturer or a gunsmith; do not estimate."
  ],
  "disclaimer": {
    "headline": "Read this before you use anything here.",
    "points": [
      "This is a guide, not an authority. Entries are compiled from manufacturer manuals, technical manuals, published references, and community knowledge. Some of it comes from sources that are not authoritative, and some of it may simply be wrong.",
      "Always consult the manufacturer's manual for your specific firearm and serial-number range. Manufacturers change designs mid-production without renaming the model. The manual that shipped with your firearm outranks anything on this site.",
      "Consult a licensed gunsmith for anything beyond routine field stripping and cleaning, for any firearm you are unsure about, and for any procedure marked as gunsmith-recommended here.",
      "Treat every firearm as loaded. Verify it is unloaded, with the magazine removed and the chamber physically and visually checked, before any procedure in this database. Point it in a safe direction the entire time.",
      "Disassembly can damage a firearm or injure you. Springs are under tension, parts can launch, and reassembling a firearm incorrectly can make it unsafe to fire in a way that is not obvious from the outside. If a reassembled firearm does not pass a function check, stop and see a gunsmith.",
      "Torque values are shown in two groups. Values from the manufacturer or the issuing military are shown as such, with the document they came from. Values reported by anyone else — parts makers, gunsmithing publishers, articles, forums — are shown separately with who said them, how reliable that source is, and their exact words. Those are not specifications. Confirm any torque value with the manufacturer or a licensed gunsmith before relying on it.",
      "Nothing here is legal advice. Firearms law varies by country, state, and city, and some modifications or configurations are regulated or prohibited. You are responsible for knowing and following the law where you are.",
      "No warranty of any kind. Contributors and maintainers accept no liability for damage, injury, or loss arising from use of this material."
    ],
    "page": "disclaimer.html",
    "legal": {
      "summary": "Legal notice: this material is third-party information compiled from sources of varying reliability and is provided for general informational and educational purposes only. It is not gunsmithing, technical, safety or legal advice, it is not verified or endorsed by any manufacturer, and it must not be taken as fact. Any work on a firearm beyond the routine field stripping described in its own owner's manual should be performed only by a licensed and insured gunsmith. You use this material entirely at your own risk. Fundamental Build LLC and the project's contributors make no warranty of any kind and accept no liability for death, injury, damage or loss arising from its use. Full terms: LEGAL.md.",
      "page": "legal.html",
      "notice": "https://github.com/Fundamental-build-LLC/Pew-Takedown/blob/main/LEGAL.md"
    }
  },
  "sourcing": {
    "confidence": "medium",
    "verification": "community-reviewed"
  },
  "manufacturerDisassembly": {
    "status": "limited",
    "limit": "Barrel, magazine cap, magazine spring and follower, yoke, and forend/slide (slide pin). The trigger group is not covered.",
    "statement": "Ithaca says no further disassembly is needed for cleaning and to contact its service department if further disassembly is needed; internal problems should go to a qualified gunsmith.",
    "source": {
      "title": "Ithaca Model 37 Owner's Manual",
      "publisher": "Ithaca Gun Company",
      "reliability": "primary",
      "url": "https://ithacagun.com/wp-content/uploads/2017/09/OwnersManualM37.pdf",
      "page": "21",
      "pdfPage": 12,
      "pageUrl": "https://ithacagun.com/wp-content/uploads/2017/09/OwnersManualM37.pdf#page=12",
      "quote": "Note: No additional disassembly is required for cleaning. If further disassembly is needed contact our service department 877-648-4222 or email Ithaca at service@ithacagun.com"
    }
  },
  "recalls": [],
  "shopTier": {
    "tier": 2,
    "group": "shotgun",
    "rating": "Pew-Takedown editorial rating (1 easy – 3 hardest), not the manufacturer's",
    "reason": "Roughly 60-80 key-numbered parts on a bottom-eject pump whose breechblock, slide and carrier must be stacked in the hand and slid in as one group while the spring shell stop is pried aside, then the carrier screws started together and the slide pin re-engaged. A strongly sprung top extractor plunger and a trigger plate that binds unless the stock is loosened add to it, but nothing is timed.",
    "confidence": "medium",
    "partCount": {
      "value": 80,
      "kind": "line-items",
      "covers": "Highest schematic key number in Ithaca Gun Co.'s own parts store (internal-parts pages, keys 04-80 seen; 01-03 not offered). Includes variant and accessory keys (DeerSlayer sights, scope bases, swivel",
      "basis": "manufacturer-parts-list",
      "source": {
        "title": "Internal Parts (product category, page 4)",
        "publisher": "Ithaca Gun Company",
        "reliability": "primary",
        "url": "https://ithacagun.com/product-category/parts/internal-parts/page/4/",
        "page": "web page 4 of the category",
        "pdfPage": null,
        "pageUrl": null,
        "quote": "80. Shotgun Scope Bases"
      }
    },
    "painPoints": [
      {
        "issue": "Breechblock, slide and carrier have to be assembled in the hand in a set relationship and slid into the receiver together; the group stops against the spring shell stop, which must be pried out with a small tool to let the slide lug pass.",
        "during": "reassembly",
        "source": {
          "title": "TM 9-285, Shotguns, All Types",
          "publisher": "War Department",
          "reliability": "primary",
          "url": "https://archive.org/download/TM9-285/TM9-285.pdf",
          "page": null,
          "pdfPage": null,
          "pageUrl": null,
          "quote": "Depress forward end of stop and insert small tool under rear end and pry out slightly from receiver wall, until lug on slide will pass under stop."
        }
      },
      {
        "issue": "The two carrier screws must both be started before either is tightened, and each pin end must enter the carrier; with only one seated the carrier is bent sideways and misses the shell stop.",
        "during": "reassembly",
        "source": {
          "title": "Ithaca Model 37 ejection problem",
          "publisher": "Accurate Reloading Gunsmithing Forum",
          "reliability": "anecdotal",
          "url": "https://forums.accuratereloading.com/eve/forums/a/tpc/f/9411043/m/522105431",
          "page": null,
          "pdfPage": null,
          "pageUrl": null,
          "quote": "Be sure the 2 screws that the carrier pivots on are seated in the holes in the carrier. It is possible to only have 1 in the hole and the other pressing against the side of the carrier, bending it enough to miss the shell stop."
        }
      },
      {
        "issue": "The top extractor is held by a powerful spring plunger that must be pushed back with a thin punch while the extractor is worked out or in.",
        "during": "both",
        "source": {
          "title": "Ithaca M37 Riot Shotgun (blog post with keyed disassembly notes)",
          "publisher": "Shooting with Hobie (blog)",
          "reliability": "anecdotal",
          "url": "https://shootingwithhobie.blogspot.com/2008/10/?m=0",
          "page": null,
          "pdfPage": null,
          "pageUrl": null,
          "quote": "The top extractor (47) is retained by a powerful spring. To remove it, use a thin punch to push the spring plunger back; at the same time push the extractor out of its seat (Fig. 7)."
        }
      },
      {
        "issue": "The trigger plate group will not go back far enough for its through-screw unless the buttstock bolt is loosened first, and the thin wrist around the stock screw splits if the screwdriver wedges; a loose steel washer must not be lost.",
        "during": "both",
        "source": {
          "title": "Ithaca 37 Shotgun Taking out the trigger assembly?",
          "publisher": "Canadian Gun Nutz",
          "reliability": "anecdotal",
          "url": "https://www.canadiangunnutz.com/forum/threads/ithaca-37-shotgun-taking-out-the-trigger-assembly.529626",
          "page": null,
          "pdfPage": null,
          "pageUrl": null,
          "quote": "When they tried to put the assembly back they couldn't get it far enough in so that the holes for the through screw which holds the assembly in the receiver no longer lined up."
        }
      }
    ],
    "minutes": {
      "strip": 55,
      "rebuild": 85,
      "basis": "estimated",
      "note": "Strip of trigger plate, breechblock/slide/carrier group, shell stops, extractors and stock; rebuild longer for stacking the group in the hand, prying the shell stop and starting both carrier screws.",
      "source": null
    },
    "stripScope": [
      {
        "assembly": "Barrel / magazine",
        "removes": [
          "barrel (slide stop released)",
          "magazine nut, spring and follower cup"
        ]
      },
      {
        "assembly": "Receiver",
        "removes": [
          "trigger plate screw and trigger plate group",
          "carrier screw lock screws and carrier screws",
          "breechblock, slide and carrier as a group",
          "positive and spring shell stops"
        ]
      },
      {
        "assembly": "Breechblock",
        "removes": [
          "top extractor, plunger and spring",
          "bottom extractor, hinge pin and spring",
          "firing pin check pin, firing pin and spring"
        ]
      },
      {
        "assembly": "Trigger plate",
        "removes": [
          "hammer, trigger, slide stop, safety and springs (only if coating the plate)"
        ]
      },
      {
        "assembly": "Stock",
        "removes": [
          "butt plate screws",
          "stock bolt and washer"
        ]
      }
    ],
    "hardware": {
      "pins": 1,
      "springs": 4,
      "detents": 0,
      "basis": "counted from the manufacturer's parts list (one per key number unless a quantity is given)"
    },
    "specialTools": [
      {
        "tool": "Thin punch",
        "usedFor": "Compressing the top extractor plunger"
      },
      {
        "tool": "Small pry tool",
        "usedFor": "Easing the spring shell stop aside for the slide lug"
      },
      {
        "tool": "Well-fitted long screwdriver",
        "usedFor": "Stock bolt without splitting the thin wrist"
      }
    ],
    "fitOnRebuild": [
      {
        "check": "Both carrier screws seated in the carrier",
        "why": "With one screw off its hole the carrier is bent and misses the shell stop.",
        "source": {
          "title": "Ithaca Model 37 ejection problem",
          "publisher": "Accurate Reloading Gunsmithing Forum",
          "reliability": "anecdotal",
          "url": "https://forums.accuratereloading.com/eve/forums/a/tpc/f/9411043/m/522105431",
          "page": null,
          "pdfPage": null,
          "pageUrl": null,
          "quote": "Be sure the 2 screws that the carrier pivots on are seated in the holes in the carrier."
        }
      },
      {
        "check": "Slide stop and lock-up test",
        "why": "TM 9-285 has the slide reciprocated and lock-up tested after replacement.",
        "source": {
          "title": "TM 9-285, Shotguns, All Types",
          "publisher": "War Department",
          "reliability": "primary",
          "url": "https://archive.org/download/TM9-285/TM9-285.pdf",
          "page": null,
          "pdfPage": null,
          "pageUrl": null,
          "quote": "Operate slide handle to test operation of slide and locking of breechblock."
        }
      },
      {
        "check": "Function check: safety, trigger/sear release, disconnector and feeding with dummy rounds",
        "why": "Standard after any detail strip; a mis-assembled sear or disconnector can double or fail to fire.",
        "source": null
      }
    ],
    "assessed": "2026-10-29"
  },
  "videos": [],
  "configurations": [],
  "tools": [],
  "phases": [
    {
      "id": "clear",
      "title": "Clear and make safe",
      "steps": [
        {
          "n": 1,
          "instruction": "Point the muzzle in a safe direction and keep your finger off the trigger."
        },
        {
          "n": 2,
          "instruction": "Engage the safety."
        },
        {
          "n": 3,
          "instruction": "Press the action release and pull the forend rearward to open the action.",
          "partsFreed": [
            "Chambered shell, if present"
          ]
        },
        {
          "n": 4,
          "instruction": "Cycle the action repeatedly, catching each shell as it drops from the bottom port, until no more feed."
        },
        {
          "n": 5,
          "instruction": "With the action open, look up through the bottom port with a light to inspect the chamber and the magazine tube.",
          "warning": "There is no side port. The bottom port is the only way in — use a light and take the time."
        },
        {
          "n": 6,
          "instruction": "Physically confirm the chamber is empty and remove all live ammunition from the work area."
        }
      ],
      "videos": []
    },
    {
      "id": "disassemble",
      "title": "Disassemble",
      "videos": [],
      "procedures": [
        {
          "procedure": "field-strip",
          "title": "Field Strip",
          "level": "field-strip",
          "configuration": false,
          "steps": [
            {
              "n": 1,
              "instruction": "Complete the Clear and Make Safe procedure."
            },
            {
              "n": 2,
              "instruction": "With the action closed, depress the magazine cap detent and unscrew the magazine cap.",
              "partsFreed": [
                "Magazine cap"
              ]
            },
            {
              "n": 3,
              "instruction": "Rotate the barrel and withdraw it forward out of the receiver.",
              "tip": "The Model 37 barrel is an interrupted-thread fit rather than a simple slip-on — rotate it as you pull.",
              "partsFreed": [
                "Barrel"
              ]
            },
            {
              "n": 4,
              "instruction": "Withdraw the forend, action slide, and bolt assembly forward out of the receiver.",
              "partsFreed": [
                "Forend and action slide assembly",
                "Bolt"
              ]
            },
            {
              "n": 5,
              "instruction": "Push out the trigger group retaining pin and lift the trigger group out through the bottom of the receiver.",
              "partsFreed": [
                "Trigger group"
              ]
            }
          ]
        },
        {
          "procedure": "trigger-plate-group-removal",
          "title": "Remove the stock and trigger plate group",
          "level": "detail-strip",
          "configuration": false,
          "steps": [
            {
              "n": 1,
              "instruction": "Remove the butt plate screws and the butt plate.",
              "partsFreed": [
                "Butt plate screws",
                "Butt plate"
              ]
            },
            {
              "n": 2,
              "instruction": "With a long-shanked screwdriver, unscrew the stock bolt from the hole in the butt of the stock.",
              "tip": "The stock bolt has a square head; if it is tight a 3/8-inch socket wrench may be used.",
              "partsFreed": [
                "Stock bolt and washer"
              ]
            },
            {
              "n": 3,
              "instruction": "Pull the stock to the rear off the tang of the receiver.",
              "partsFreed": [
                "Stock"
              ]
            },
            {
              "n": 4,
              "instruction": "With the hammer in the forward (fired) position, unscrew the trigger plate screw from the left rear face of the receiver, just above the trigger.",
              "partsFreed": [
                "Trigger plate screw"
              ]
            },
            {
              "n": 5,
              "instruction": "Pull the trigger plate group to the rear out of the receiver.",
              "partsFreed": [
                "Trigger plate group"
              ]
            }
          ]
        },
        {
          "procedure": "breechblock-slide-carrier-removal",
          "title": "Remove the breechblock, slide and carrier group",
          "level": "detail-strip",
          "configuration": false,
          "steps": [
            {
              "n": 1,
              "instruction": "Remove the barrel and the trigger plate group first."
            },
            {
              "n": 2,
              "instruction": "Hold the receiver bottom side up with the magazine facing left."
            },
            {
              "n": 3,
              "instruction": "With a fingernail or small flat instrument, pull the slide pin (visible in the forward end of the slide) toward you while moving the slide handle forward, until the slide bar is released from the slide."
            },
            {
              "n": 4,
              "instruction": "Unscrew the two carrier screw locking screws in the right and left walls of the receiver.",
              "partsFreed": [
                "Carrier screw locking screws (2)"
              ]
            },
            {
              "n": 5,
              "instruction": "Remove the two carrier screws.",
              "partsFreed": [
                "Carrier screws (2)"
              ]
            },
            {
              "n": 6,
              "instruction": "Pull the carrier, breechblock and slide together out of the rear of the receiver.",
              "partsFreed": [
                "Carrier",
                "Breechblock",
                "Slide"
              ]
            },
            {
              "n": 7,
              "instruction": "Remove the positive shell stop from its groove by pushing inward on its pivot stud where it projects through the right wall of the receiver.",
              "tip": "The manual removes it here to prevent its loss.",
              "partsFreed": [
                "Positive (right) shell stop"
              ]
            }
          ]
        }
      ]
    },
    {
      "id": "refinish",
      "title": "Refinish",
      "components": [
        {
          "name": "Magazine cap",
          "procedure": "field-strip",
          "level": "field-strip",
          "step": 2
        },
        {
          "name": "Barrel",
          "procedure": "field-strip",
          "level": "field-strip",
          "step": 3
        },
        {
          "name": "Forend and action slide assembly",
          "procedure": "field-strip",
          "level": "field-strip",
          "step": 4
        },
        {
          "name": "Bolt",
          "procedure": "field-strip",
          "level": "field-strip",
          "step": 4
        },
        {
          "name": "Trigger group",
          "procedure": "field-strip",
          "level": "field-strip",
          "step": 5
        },
        {
          "name": "Butt plate screws",
          "procedure": "trigger-plate-group-removal",
          "level": "detail-strip",
          "step": 1
        },
        {
          "name": "Butt plate",
          "procedure": "trigger-plate-group-removal",
          "level": "detail-strip",
          "step": 1
        },
        {
          "name": "Stock bolt and washer",
          "procedure": "trigger-plate-group-removal",
          "level": "detail-strip",
          "step": 2
        },
        {
          "name": "Stock",
          "procedure": "trigger-plate-group-removal",
          "level": "detail-strip",
          "step": 3
        },
        {
          "name": "Trigger plate screw",
          "procedure": "trigger-plate-group-removal",
          "level": "detail-strip",
          "step": 4
        },
        {
          "name": "Trigger plate group",
          "procedure": "trigger-plate-group-removal",
          "level": "detail-strip",
          "step": 5
        },
        {
          "name": "Carrier screw locking screws (2)",
          "procedure": "breechblock-slide-carrier-removal",
          "level": "detail-strip",
          "step": 4
        },
        {
          "name": "Carrier screws (2)",
          "procedure": "breechblock-slide-carrier-removal",
          "level": "detail-strip",
          "step": 5
        },
        {
          "name": "Carrier",
          "procedure": "breechblock-slide-carrier-removal",
          "level": "detail-strip",
          "step": 6
        },
        {
          "name": "Breechblock",
          "procedure": "breechblock-slide-carrier-removal",
          "level": "detail-strip",
          "step": 6
        },
        {
          "name": "Slide",
          "procedure": "breechblock-slide-carrier-removal",
          "level": "detail-strip",
          "step": 6
        },
        {
          "name": "Positive (right) shell stop",
          "procedure": "breechblock-slide-carrier-removal",
          "level": "detail-strip",
          "step": 7
        }
      ],
      "manufacturerPartsList": {
        "parts": 24,
        "scope": "TM 9-285 Figure 53 lettered legend, \"Disassembled View (Without Barrel)—Ithaca Shotgun M37\" (12-gage). Field-level groups; R and T are whole groups, and there is no barrel or internal parts list. The Ithaca owner’s manual has no parts list."
      },
      "partsDiagrams": [],
      "materials": [
        {
          "component": "Stock",
          "material": "Walnut",
          "finish": null,
          "appliesTo": "Model 37 Featherlight 12ga 28in, SKU FL1228VRAA",
          "note": null,
          "source": {
            "title": "Ithaca Model 37 Featherlight | Ithaca Gun Co — Description / Additional information",
            "publisher": "Ithaca Gun Company",
            "reliability": "primary",
            "url": "https://ithacagun.com/product/model-37-featherlight/",
            "page": null,
            "pdfPage": null,
            "pageUrl": null,
            "quote": "Wood Grade … Grade AA Walnut"
          }
        },
        {
          "component": "Stock",
          "material": "Walnut",
          "finish": null,
          "appliesTo": "Model 37 Featherlight, SKU FL1228VRAA",
          "note": null,
          "source": {
            "title": "Ithaca Model 37 Featherlight | Ithaca Gun Co — Description / Additional information",
            "publisher": "Ithaca Gun Company",
            "reliability": "primary",
            "url": "https://ithacagun.com/product/model-37-featherlight/",
            "page": null,
            "pdfPage": null,
            "pageUrl": null,
            "quote": "AA Walnut Stock"
          }
        },
        {
          "component": "Trigger",
          "material": null,
          "finish": "Gold Plated",
          "appliesTo": "Model 37 Featherlight, SKU FL1228VRAA",
          "note": null,
          "source": {
            "title": "Ithaca Model 37 Featherlight | Ithaca Gun Co — Description / Additional information",
            "publisher": "Ithaca Gun Company",
            "reliability": "primary",
            "url": "https://ithacagun.com/product/model-37-featherlight/",
            "page": null,
            "pdfPage": null,
            "pageUrl": null,
            "quote": "Gold Plated Trigger"
          }
        }
      ],
      "note": "The components the procedures above separate. Coating, masking and cure are outside this database; follow your coating system's instructions. A part the manufacturer marks \"factory fit\" should not be swapped or reworked."
    },
    {
      "id": "reassemble",
      "title": "Reassemble",
      "videos": [],
      "procedures": [
        {
          "procedure": "breechblock-slide-carrier-removal",
          "title": "Remove the breechblock, slide and carrier group",
          "configuration": false,
          "steps": null,
          "instruction": "Reverse the steps of \"Remove the breechblock, slide and carrier group\"."
        },
        {
          "procedure": "trigger-plate-group-removal",
          "title": "Remove the stock and trigger plate group",
          "configuration": false,
          "steps": null,
          "instruction": "Reverse the steps of \"Remove the stock and trigger plate group\"."
        },
        {
          "procedure": "breechblock-slide-carrier-replacement",
          "title": "Replace the breechblock, slide and carrier group",
          "configuration": false,
          "steps": [
            {
              "n": 1,
              "instruction": "Clean, lightly oil and lubricate the parts before replacing them."
            },
            {
              "n": 2,
              "instruction": "Replace the positive shell stop in its groove in the inner right wall of the receiver, thin curved end forward, so it lies flush with its pivot stud flush with the outer right face of the receiver."
            },
            {
              "n": 3,
              "instruction": "Hold the breechblock bottom side up, extractor to the left, in your left hand."
            },
            {
              "n": 4,
              "instruction": "Place the slide on the breechblock so the hook-shaped aperture in the rear of the slide mates with the hook-shaped lug on the rear of the breechblock."
            },
            {
              "n": 5,
              "instruction": "Take the carrier in your right hand, long points to the left and curved notched end up, and slide it onto the breechblock from the rear so the breechblock lies between the carrier's long ends with the slide above it and the small lug on the rear of the slide fits the notch in the rear of the carrier."
            },
            {
              "n": 6,
              "instruction": "Transfer the group to your right hand and take the receiver in your left, bottom side up and open end to the right."
            },
            {
              "n": 7,
              "instruction": "Slide the group into the receiver through the open end, long ends of the carrier first, so the guides on the slide mate with the guideways in the receiver walls, and push it in until the slide is checked by the rear end of the spring (left) shell stop."
            },
            {
              "n": 8,
              "instruction": "Depress the forward end of the spring shell stop, insert a small tool under its rear end and pry it out slightly from the receiver wall until the lug on the slide will pass under it.",
              "warning": "Do not pry the stop out farther than necessary."
            },
            {
              "n": 9,
              "instruction": "Push the group all the way forward."
            },
            {
              "n": 10,
              "instruction": "Move the carrier to the rear until the carrier screw holes in carrier and receiver line up."
            },
            {
              "n": 11,
              "instruction": "Insert both carrier screws and catch the threads on both before screwing down either.",
              "tip": "The pin end of the carrier screw must enter the carrier before its thread will mate with the thread in the receiver."
            },
            {
              "n": 12,
              "instruction": "Screw the carrier screws in snugly until the locking-screw countersinks in their heads line up with those in the receiver."
            },
            {
              "n": 13,
              "instruction": "Replace the locking screws and draw them down snugly and flush."
            },
            {
              "n": 14,
              "instruction": "With the slide forward, move the slide handle to the rear until the bar contacts the slide pin."
            },
            {
              "n": 15,
              "instruction": "Retract the slide pin (visible in the bottom of the slide) with a fingernail or small flat instrument, move the bar rearward until the pin engages the hole in the rear end of the bar, and release the pin."
            },
            {
              "n": 16,
              "instruction": "Operate the slide handle to test the operation of the slide and the locking of the breechblock."
            }
          ],
          "instruction": null
        },
        {
          "procedure": "trigger-plate-group-replacement",
          "title": "Replace the trigger plate group and stock",
          "configuration": false,
          "steps": [
            {
              "n": 1,
              "instruction": "With the hammer forward and the slide forward, push the trigger plate group into the lower rear end of the receiver, hammer first, so the guides on the plate mate with the guideways in the receiver walls.",
              "tip": "With the hammer forward the slide stop will not interfere with the slide; if the hammer is cocked, the slide stop must be held disengaged."
            },
            {
              "n": 2,
              "instruction": "Push the plate forward until the screw holes in plate and receiver line up."
            },
            {
              "n": 3,
              "instruction": "Replace the trigger plate screw from the left side of the receiver and screw it in snugly until its head is flush with the face of the receiver."
            },
            {
              "n": 4,
              "instruction": "Slide the stock on over the receiver tang until it is flush with the rear end of the receiver and trigger plate."
            },
            {
              "n": 5,
              "instruction": "Replace the stock bolt and washer and screw down tightly, turning clockwise."
            },
            {
              "n": 6,
              "instruction": "Replace the butt plate and screw it down snugly.",
              "warning": "Butt plate screws turned too tight may strip the threads in the stock or crack a composition butt plate."
            }
          ],
          "instruction": null
        },
        {
          "procedure": "reassembly",
          "title": "Reassembly",
          "configuration": false,
          "steps": [
            {
              "n": 1,
              "instruction": "Install the trigger group into the receiver and insert its retaining pin."
            },
            {
              "n": 2,
              "instruction": "Feed the bolt and action slide assembly into the receiver from the front, keeping the action bar in its track."
            },
            {
              "n": 3,
              "instruction": "Insert the barrel into the receiver and rotate it to engage the interrupted threads.",
              "warning": "Seat the barrel fully. A partially engaged barrel will not headspace correctly."
            },
            {
              "n": 4,
              "instruction": "Thread the magazine cap on and tighten it until the detent engages.",
              "warning": "Confirm the cap is fully seated and the detent has clicked."
            },
            {
              "n": 5,
              "instruction": "Cycle the action several times and perform the function check."
            }
          ],
          "instruction": null
        }
      ]
    },
    {
      "id": "torque",
      "title": "Torque",
      "coverage": "none-recorded",
      "manufacturer": [],
      "reported": [],
      "notes": "The manufacturer's documents give no torque value. They say: \"With a small screwdriver screw in the yoke screw, but be sure not to over tighten it (Figure 23).\" (Ithaca Model 37 Owner's Manual, PDF p. 14) \"Once the barrel is seated, center the yoke to the barrel and snug the screw but do not tighten.\" (Ithaca Gun Co. FAQ)"
    },
    {
      "id": "function-check",
      "title": "Function check",
      "checks": [
        "Verify the shotgun is unloaded — chamber and magazine tube — before each step.",
        "Cycle the action fully. It should run smoothly without binding and lock closed.",
        "With the action closed and the hammer cocked, engage the safety and press the trigger. The hammer must not fall.",
        "Disengage the safety and press the trigger. The hammer should fall.",
        "With the hammer down, confirm the action will not open until the action release is pressed.",
        "Load two dummy shells into the magazine and confirm they feed and eject cleanly, one per cycle.",
        "Determine whether your gun has a trigger disconnector: with the hammer cocked and the trigger held to the rear, cycle the action fully. If the hammer falls as the action closes, the gun slam fires and has no disconnector.",
        "Know the answer before you load it. A slam-firing shotgun handled as if it has a disconnector is dangerous."
      ],
      "videos": []
    }
  ],
  "troubleshooting": [],
  "sources": [
    {
      "n": 1,
      "id": null,
      "title": "Ithaca Model 37 Owner’s Manual",
      "publisher": "Ithaca Gun Company",
      "reliability": "primary",
      "url": null,
      "accessed": null
    },
    {
      "n": 2,
      "id": "ithaca-gun-company-99fa09",
      "title": "Ithaca Model 37 Owner's Manual",
      "publisher": "Ithaca Gun Company",
      "reliability": "primary",
      "url": "https://ithacagun.com/wp-content/uploads/2017/09/OwnersManualM37.pdf",
      "accessed": "2026-09-27"
    },
    {
      "n": 3,
      "id": "ithaca-gun-company-1607d7",
      "title": "Ithaca Gun Co. FAQ",
      "publisher": "Ithaca Gun Company",
      "reliability": "primary",
      "url": "https://ithacagun.com/resources/faq/",
      "accessed": "2026-09-27"
    },
    {
      "n": 4,
      "id": "ithaca-37-parts-manual",
      "title": "TM 9-285, Shotguns, All Types",
      "publisher": "War Department",
      "reliability": "primary",
      "url": "https://archive.org/download/TM9-285/TM9-285.pdf",
      "accessed": "2026-09-27"
    },
    {
      "n": 5,
      "id": "ithacagun-specs-37b4c8",
      "title": "Ithaca Model 37 Featherlight | Ithaca Gun Co — Description / Additional information",
      "publisher": "Ithaca Gun Company",
      "reliability": "primary",
      "url": "https://ithacagun.com/product/model-37-featherlight/",
      "accessed": "2026-10-03"
    },
    {
      "n": 6,
      "id": "tier-0c368127",
      "title": "Internal Parts (product category, page 4)",
      "publisher": "Ithaca Gun Company",
      "reliability": "primary",
      "url": "https://ithacagun.com/product-category/parts/internal-parts/page/4/",
      "accessed": "2026-10-29"
    },
    {
      "n": 7,
      "id": "tier-9ed51c6b",
      "title": "Ithaca Model 37 ejection problem",
      "publisher": "Accurate Reloading Gunsmithing Forum",
      "reliability": "anecdotal",
      "url": "https://forums.accuratereloading.com/eve/forums/a/tpc/f/9411043/m/522105431",
      "accessed": "2026-10-29"
    },
    {
      "n": 8,
      "id": "tier-02cbc658",
      "title": "Ithaca M37 Riot Shotgun (blog post with keyed disassembly notes)",
      "publisher": "Shooting with Hobie (blog)",
      "reliability": "anecdotal",
      "url": "https://shootingwithhobie.blogspot.com/2008/10/?m=0",
      "accessed": "2026-10-29"
    },
    {
      "n": 9,
      "id": "tier-60f94791",
      "title": "Ithaca 37 Shotgun Taking out the trigger assembly?",
      "publisher": "Canadian Gun Nutz",
      "reliability": "anecdotal",
      "url": "https://www.canadiangunnutz.com/forum/threads/ithaca-37-shotgun-taking-out-the-trigger-assembly.529626",
      "accessed": "2026-10-29"
    }
  ]
}