2-S19
ZD321, ZD326, ZD331, WSM
TRANSAXLE
[2] DISASSEMBLING TRANSAXLE CENTER CASE
Center Case Rear Cover
1. Remove the oil filter cartridge (1).
2. Remove the delivery pipe (3).
3. REmove the center case rear cover (4).
• Remember to remove the hex. socket head screw hidden
behind the filter cartridge (1)
• To remove the center case rear cover (4) mounted on the
machine, also remove the hydraulic pump (2). This makes
fitting the spline between pump shaft and the pump drive
shaft easy.
(When reassembling)
• Apply liquid gasket (Three Bond 1208D or equivalent) to joint
face of the center case and center case rear cover.
• Take care not to damage the oil seal.
W1028608
PTO Clutch Shaft Assembly and Pump Gear Shaft
1. Remove the input shaft assembly (1).
2. Remove the PTO clutch shaft assembly (2) and pump shaft
assembly (3).
(When reassembling)
• Take care not to damage the PTO shaft oil seal.
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Center Case Front Cover
• To remove the center case front cover (4) mounted on the
machine, remove the PTO shaft oil seal (5) first.
1. Remove the HST Pipe (1).
2. Remove the delivery pipe (3).
3. Remove the PTO clutch lever (2).
4. Remove the center case front cover (4).
(When reassembling)
• Take care not to damage the oil seal (5).
• Apply liquid gasket (Three Bond 1208D or equivalent) to joint
face of the center case and center case front cover (4).
W1029085
Tightening torque
Center case rear cover
mounting screw
40 to 44 N·m
4.0 to 4.5 kgf·m
29 to 32 lbf·ft
(1) Oil Filter Cartridge
(2) Hydraulic Pump
(3) Delivery Pipe
(4) Center Case Rear Cover
(1) Input Shaft Assembly
(2) PTO Clutch Shaft Assembly
(3) Pump Shaft Assembly
Tightening torque
Center case front cover
mounting screw
40 to 44 N·m
4.0 to 4.5 kgf·m
29 to 32 lbf·ft
(1) HST Pipe
(2) PTO Clutch Lever
(3) Delivery Pipe
(4) Center Case Front Cover
(5) PTO Shaft Oil Seal
(6) Plate
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