Yanmar 4LHA-HTP Operation Manual page 591

Chapter 7 Reduction and Reversing Gear
4. Disassembly
TAPERED ROLLER BEARING CUPS
IMPORTANT: Do not remove tapered roller bearing cups
unless replacing tapered roller bearings. Bearing and
cup must be replaced as a set.
IMPORTANT: Do not mix up shims under cups on the in-
put housing side. Shims are required to adjusting the
bearing preload.
26. Pull tapered roller bearing cups from housing use special
puller as follows:
a. Position appropriate puller guide (large diameter or
small diameter) over cup as shown.
a - Small Diameter Puller Guide
b. Pull bearing cup from housing tool as shown.
c. Input Housing Side: Remove and retain shims.
DO NOT MIX UP.
7-2-17
4LHA Serie