GEAR 1211253 - Caterpillar

Tube (21) slides in recoil spring (20). Recoil spring (20) must be kept level so that the spring does not slide off the tube unexpectedly. If the spring slides unexpectedly, you could drop the spring.
The combined weight of Tube (21) and recoil spring (20) is approximately 194 kg (427 lb). Put a bar in position in the tube and the recoil spring, as shown. See Illustration 3. Use a lifting strap on the bar next to the spring and attach a suitable lifting device to the bar. Counterbalance the tube and the recoil spring at the opposite end of the bar. Use a suitable lifting device to install tube (21) and recoil spring (20) in the front track roller frame.
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Attach a suitable lifting device to guide assembly (19) and install guide assembly (19). The weight of guide assembly (19) is approximately 30 kg (66 lb).
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Fasten a suitable lifting device to recoil spring retainer (4). The weight of recoil spring retainer (4) is approximately 36 kg (80 lb). Install recoil spring retainer (4). Put the retainer in position and install the retainer as far as possible with the use of a piece of bar stock. The bar stock is part of Tooling (A). There will be approximately 228.6 mm (9.00 inch) of the recoil spring retainer that sticks out of the front track roller frame.
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Tooling (B)
Install Tooling (B) on the front track roller frame, as shown. See Illustration 7. Install the recoil spring and the guide in the following manner.
Measure the distance from the plate to the face of the front track roller frame. Measure the plate at all four corners. Adjust 2J-3505 Nuts (14) so all four corners of 6V-2168 Plate (17) are the same distance from the face of the front track roller frame.
There must never be more than 12.7 mm (0.50 inch) distance between the recoil spring and the spring retainer during the installation of the recoil spring.
Slowly extend the cylinder rod in order