SPARK PLUG 1043170 - Caterpillar

Prior to disassembling the recoil spring assembly, make sure that Tooling (A) is on a level surface.
Thoroughly clean the outside surface of the recoil spring assembly prior to disassembly.
Illustration 1 g00483426
Install Tooling (C) on Tooling (B), as shown.
Illustration 2 g00494710
Illustration 3 g00483437
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Note: Adjustable supports (1), reaction plate (2), and movable plate (3) are part of Tooling (A).
Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is approximately the same length as the recoil spring assembly. Also, make sure that adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. The free length of the recoil spring is 958 mm (37.7 inch). The compressed length of the recoil spring for assembly is 848 mm (33.3 inch).
Level the supports. Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case, reaction plate (2) must be removed. Then reinstall the reaction plate after the recoil spring assembly is in place on two adjustable supports (1).
Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling.
The weight of the recoil spring assembly is approximately 279 kg (615 lb). Fasten a suitable lifting device to the recoil spring assembly.
Put the recoil spring assembly in position on adjustable supports (1) in Tooling (A).
Adjust the adjustable supports in order to align the centerline of the recoil spring assembly with the centerline of Tooling (A).
Illustration 4 g00498760
Illustration 5 g00498781
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Note: The suitable lifting device has been removed from the recoil spring assembly in order to provide a better illustration of level gauge (4).
Put a level gauge (4) on the recoil spring assembly.
Reposition the recoil spring assembly until the recoil spring assembly is level. Reposition the recoil spring assembly until the retaining rod and nut (6) are centered in the hole in reaction plate (2).
The recoil spring assembly is leveled by moving adjustable supports (1) higher or lower. Refer to Illustration 2. After the recoil spring assembly is leveled and centered, install two pins (5) on the back side of reaction plate (2), as shown.
Operate Tooling (B) enough to hold the recoil spring assembly in position between reaction plate (2) and movable plate (3). Refer to Illustration 3. Again, check and make sure that the recoil spring assembly is level and centered.
Illustration 6 g00498784
Illustration 7 g00498786
Several tons of force are required to compress the recoil spring during assembly.Do not compress the spring assembly until the covers on the tooling have been closed.It is possible for the recoil spring to twist under load and come out of the tooling resulting