Shibaura ST330 - Port Block Assembly; Tightening Torque of Parts

98
3） Reassembly
(1) Reassemble units in the reverse order to removal taking care to the following points.
・Wash and clean each parts and blow with compressed air.
・Check each parts not to damage and worn out before installing.
・Replace the seals and O-rings with new one.
・Tighten the bolts and screws to specified torque.
・Apply the lithium grease to oil seals lip and O-rings before installing.
・After completion of reassembly, turn the input, output and trunnion shafts to check for smooth operation.
(2) Tightening torque of parts
No. Item
Tightening torque
N・m（kgf・m）
1
2
3
4
5
6
7
8
9
Holder
Charge pump case
Pump case
Motor case
Motor case cover
Pressure detection plug
High pressure relief valve
Neutral valve
Cover
58.8{6.0}
17.7{1.8}
39.2{3.5}
39.2{3.5}
4.9{0.5}
51.0{5.5}
36.8{2.7}
51.0{3.75}
3.9{0.4}
(3) Port block assembly
When the needle bearing is removed from the port
block, be careful about the push-up depth.
The needle bearing (28A) of the motor should be
projected 3.5mm over the port block surface.
The needle bearing (28B) of the pump should be
projected 2.5mm over the port block surface.
The stamped surface of the needle bearings are toward
the out side.
Press the oil seal (32) to 4mm in depth from surface to
the port block and secure with snap ring.
380Y
381Y