Assembling The Gear Pump Housing - Yamaha E115A Service Manual

Assembling the gear pump housing

1. Install a new O-ring 1, up-relief valve
seat 2, ball 3, absorber valve pin 4,
and spring 5 into the gear pump hous-
ing.
1
2. Install new O-rings 6 onto the main
valves 7, and then install the main
valves into the gear pump housing.
3. Install the drive gear 8 and driven gear
9 into the gear pump housing as shown.
9
8
61U5H11
5
4
3
2
6G470450
6G470470
4. Install the balls 0, shuttle pistons q, and
balls w into the gear pump cover.
q
0
w
NOTE:
Apply fluid to the balls w and shuttle pistons
q to prevent them from falling out of the gear
pump cover.
5. Install the gear pump cover e into the
gear pump housing, and then tighten the
bolts.
e
6. Check that the gear pump turns smooth-
ly, and then tighten the gear pump cover
bolts to the specified torque.
Gear pump cover bolt:
6 N·m (0.6 kgf·m, 4.4 ft·lb)
Gear pump
1
2
3
6G470480
4
5
6
7
8
61U70200
9
7-46