6-25
Part name
Service criteria
1. The gear tooth surface is damaged excessively, worn of flaked.
1. The plate is damaged or worn excessively.
1. The roller or the race is damaged excessively, dented or flaked.
2. The rotation produces abnormal noise or is not smooth.
ö
To replace the bearing, replace the body assembly.
1. The lip is damaged, deformed or worn excessively.
2. The lip is hardened.
1. The gear tooth surface is damaged excessively, worn or flaked.
ö
To replace the housing, replace the body assembly.
1. The rolling contact surface of the needle bearings is damaged
excessively or worn or flaked.
1. The surface of the needle bearings is damaged excessively or worn or
flaked.
1. The gear tooth surface is excessively damaged, worn of flaked.
2. The rolling contact surface in contact with the needle bearing is
excessively damaged, worn or flaked.
1. The sliding surface is excessively damaged, worn or seized.
Pinion shaft (1-2)
Plates (1-3), (1-8)
Taper roller bearings (1-5), (1-7)
Oil seal (1-6)
Housing (1-1)
Holders (1-10), (1-18)
Drive gear (1-24)
Sun gear (1-17)
Inner races (1-12), (1-20)
Needle bearings (1-13), (1-21)
Planetary gears (1-14), (1-22)
Thrust plates (1-15), (1-23)
R
R
EDUCTION GEAR
2)
Part name
Service criteria
1. The sliding surface is damaged deeply or rough.
2. The clearance between the piston and the case hole is large.
Upper limit of diameter clearance : 0.04mm
1. The spring is broken or deformed excessively.
1. Damage that is likely to cause oi leak, damage that is likely to
deteriorate the sealing or permanent deformation is noticed.
Piston (2-38-14)
Case (2-1)
Spring (2-40)
Plugs (2-38-6), (2-41)
Check valve (2-39)
O-rings (2-38-8, 9, 10, 11), (2-42)
Backup rings (2-38-12, 13)
VALVE
3)
Part name
Service criteria
Damage that is likely to cause oil leak, damage that is likely to deteriorate
the sealing or permanent deformation is noticed.
Other plugs and O-rings
OTHERS
4)