KIT-GASKET 2976876 - Caterpillar

To properly adjust the cab door latch and striker, follow the procedures listed in Steps 1 through 4 and Illustration 1.
Adjustment Procedure - Extreme Service
Illustration 1.
(A) Primary position (fully latched). (B) Unlatched position. (C) Lubricate with a dry type lubricant. (1) Striker. (2) Latch Assembly.1. Close the door and locate striker (1) in latch assembly (2) so it is centered vertically in the latch pawl, engages the pawl smoothly, and does not guide the door upward or downward.2. Check for interference between striker head and pawl or latch case. Adjust striker, if required, by adding or removing 8T0318 Striker Shims.3. Check latch pawl to confirm that it is in the primary latch position. When in primary position (A), the door is fully closed and latched. In the secondary latched position, the door is latched but the pawl is not in the primary latch position.4. If primary position (A) is not achieved due to high seal pressure or striker position, loosen striker on door post and adjust striker until primary latch position is achieved. Tighten striker (1) to a torque of 45 7 N m (33 5 lb ft).* Hinge adjustment may also be required to achieve primary position or correct door seal pressure.* Excessive seal pressure results in high handle opening torque loads. It is possible to adjust the door so that it is fully closed against the seal with the latch in the secondary position. On Some D9N, D10N, and D11N Tractor cabs, additional striker adjustment may be necessary. The mounting hole for the striker may be slotted toward the centerline of the cab. The maximum dimension allowed is 40.3 mm (1.59 in). See Illustration 2.
Illustration 2.
(D) Std. - 35.3 mm (1.39 in). (E) Max. - 40.3 mm (1.59 in). (F) 20.5 mm (.81 in) diameter. (G) Cab post. (H) Centerline of cab.Maintenance
Use an air dry type lubricant that is spray applied for maintenance in latch component areas (C). This maintains smooth operation of the linkage. (Dry lubricant reference: PERMA-SILK® or MOLYKOTE 321®).
* The use of a wet type lubricant is not recommended due to the grit build-up it causes.