Kubota GR1600EC2, Workshop Manual, Page: 159 / 241

2-S30
GR1600EC2, WSM TRANSAXLE
Cylinder Block Assembly
1. Check the cylinder blocks (4) and pistons (3) for scratches and
wear.
2. If scratch or warn, replace the cylinder block assembly.
3. Check that the piston (3) and spring (2) are in each cylinder bore.
4. Check the pistons for their free movement in the cylinder block
bores.
5. If the piston or the cylinder block is scored, replace the cylinder
block assembly.
6. Check the polished face (1) of cylinder block for scoring.
7. If scored, replace the cylinder block assembly.
IMPORTANT
■
• Do not interchange pistons between pump and motor
cylinder block. Pistons and cylinder blocks are matched.
W1028175
Thrust Ball Bearing
1. Check the thrust ball bearing (1) for scratches and excessive
wear.
2. If the thrust ball bearing (1) is worm, replace it.
W1028631
Pump Shaft
1. Check the seal surface (1), the bearing surface (2) and the ball
bearing (3).
2. If the shaft is rough or grooved, replace it.
3. If the ball bearing is worn, replace it.
W1028763
Bushing and Oil Seal
1. Check the oil seals (1) for damage.
2. Check the bushings (2) for wear.
3. If the oil seals and bushings are worn or damaged, replace them.
W1028901
(1) Polished Face
(2) Spring (3) Piston
(4) Cylinder Block
(1) Thrust Ball Bearing
(1) Seal Surface
(2) Bearing Surface (3) Ball Bearing
(1) Oil Seal (2) Bushing
KiSC issued 07, 2006 A