Thermo King T-500R Maintenance Manual page 256

Checking End Play
IDLER PULLEY
Seal Installation — UT-Series
NOTE: The idler pulley uses seal assembly P/N 77-1575. See diagram below.
Installation Procedure
To perform a seal change the following procedure is recommended:
1. Remove idler pulley from the unit.
2. Remove the retaining snap ring and discard the bearings.
3. Stack the idler components on an assembly pin that supports the pulley.
4. Install wave washer, one ball bearing (seal side out) and bearing spacer on the pin.
NOTE: If new bearings have two seals, one seal must be removed.
5. Install grease slinger and add grease. Fill cavity 1/2 full between bearings. Use Shell Alvania EP2 synthetic grease.
6. Install second ball bearing (seal side out) and retaining (snap) ring. Use arbor press to seat snap ring.
7. Remove assembly pin and insert idler spindle, spindle collar and mounting bolt.
8. Install the pulley assembly in unit. Torque mounting bolt to 80 Nm.
Structural Maintenance 12-10