Cleaning and Inspection

TRANSFER CHAINS LENGTH MEASUREMENT
The need to replace the transfer chains because of excessive wear is unlikely. If chain length is suspected to be long, perform the following procedure to measure the chain length:





1. Insert a screwdriver into the 18 mm hole with the screwdriver ABOVE the chains.
2. Pry the chains down at the center of the chains.





3. Butt a scale against the snubber and mark the cable at the bottom of the chains.





4. Insert a screwdriver into the 18 mm hole with the screwdriver BELOW the chains. An assistant may be needed to perform this step.
5. Pry the chains up at the center of the chain.





6. Butt a scale against the snubber and place a second mark on the scale at the bottom of the chains.





7. Measure the distance between the two marks placed on the scale. If the two marks on the scale are more than one inch apart, replace the drive chains.
8. If the transfer chains were replaced, refer to Snubber Gap Measurement to verify correct snubber clearance.

SNUBBER GAP MEASUREMENT
The gap between the snubber face and the top of the chain should be 0.0" to 0.030" inch with chain slack removed. The gap can be adjusted by installing snubbers with different off-set mounting holes. The amount of off-set the mounting holes has, will determine the position of the chain snubber.

The snubbers can be identified by their color. There are three different snubber colors available (black, green and tan). The black snubber will give the most clearance between the chain and the snubber face. The green snubber will give the least clearance between the chain and the snubber face. The tan snubber is the nominal snubber.
1. Insert screwdriver into the 18 mm hole below the chain and pry up on chain to remove slack in chain.





2. Using a feeler gauge, measure the gap between the snubber face and the top of the chain.
3. If the measurement is not within specifications, install the correct snubber as required