KEY 5160744 - Caterpillar

Lightly lubricate all parts before reassembling. If the retaining bolt and washers are available, the No-SPIN can be assembled outside of the case and then installed into the case and ring gear in the usual way. Be sure, however, that the retaining washers are small enough to pass through the differential case-ends after the case bolts are tightened. (See illustration under "Special Tools" page 14).See proper reassembly instructions which follow and the correct installation instructions for the model being serviced.If the retaining bolt and washers are not available, it is quite easy to assemble the pieces into the case, holding the case in position by hand pressure until the case bolts are tightened as outlined in the following step-by-step procedures.1. Lay ring gear and large half of case on bench with the bearing end of case hub down and the inner case facing upward. Be sure no thrust washers are inside the case.2. Place the ground hub of a side gear into the bore of the case, being sure the side gear will rotate freely in the case. Some two-speed axles use different length side gears and the correct side gear must be used.3. Assemble a spring over the inner hub of the side gear and against the spring seat of the side gear. Place the supped section of a spring retainer over the spring.
Incorrect assembly of the spring retainer can limit the spring movement and prevent proper No-SPIN operation.
4. Alternately compress and release the spring checking for possible binding in any position and for good contact between the end coil of the spring and the seat of the spring retainer in all positions.5. Assemble a clutch over the spring retainer with the clutch teeth up. Be sure the spring retainer is seated properly into the clutch and does not bind in the splines.6. Place spider-center cam assembly on the driven clutch, indexing the teeth.7. Place the other clutch on the spider again indexing the teeth. Assemble the spring retainer into the clutch with cup down, being sure it is properly seated. Place the second spring and side gear in position.8. Mount the mating half of the case over the side gear and compress unit. Be sure the side gear splines are completely indexed with the clutch splines.9. Hold the case halves together firmly, aligning the punch marks to be sure the two case halves are properly mated. Start threading some of the case bolts but do not release hand pressure until two or more bolts are drawn up enough to overcome the spring pressure.10. Tighten case bolts to the torque specified by the axle manufacturer. Check to be certain of a snug fit between the two case halves at all points and between the holes in the case and the spider trunnions. Lock and assemble the No-SPIN, case and ring gear assembly in the way recommended for the conventional differential assembly.