Disassembly And Assembly Of Hst Motor Assembly - Komatsu WA250-6 Shop Manual

500 Hydraulic system

Disassembly and assembly of HST motor assembly

Disassembly and assembly of
HST motor assembly
Special tools
Symbol Part No.
4 02010-20783 Bolt
790-201-2740 Push tool
S
5 793T-417-1120 Push tool
02010-20783 Bolt
Disassembly
1. Seal
1) Protect drive shaft (1) with a tape etc.
2) Remove snap ring (2) and shim (3).
CJW11980
3) Tighten screws [1] into the holes of shaft
seal (4) blocked with rubber.
4) Pull out shaft seal (4) with pliers.
CJW11981
WA250, 250PZ-6
Part name
q 1
t 1
q 1
q 1
2. EP servo valve assembly and cover (HST
motor 1)
1
CJW12101
1) Remove 4 mounting bolts and solenoid
valve and housing assembly (5).
a Take care of the spring which may
jump out.
CJW11982
SEN03856-00
37
50-500