Checking The Main Valve; Checking The Gear Pump; Checking The Gear Pump Housing; Checking The Reservoir - Yamaha E115A Service Manual

BRKT
5. Cover the pump housing with a clean
cloth, and then blow compressed air
through holes a and b while holding the
cloth down.
6. Remove the main valves y.
w
Never look into the pump housing open-
ing while removing the main valves
because the main valves and PTT fluid
can be forcefully expelled out.
7. Remove the circlip u and then remove
the manual valve i.
7-45
Bracket unit
y
a
b
6G470430
i
u
6G470440

Checking the main valve

1. Check the main valve 1. Clean if there is
dirt or residue.
1

Checking the gear pump

1. Check the drive gear and driven gear.
Replace the gear pump assembly if there
are damage or wear.

Checking the gear pump housing

1. Check the inside of the gear pump hous-
ing. Replace if scratched or worn.

Checking the reservoir

1. Check the reservoir and O-ring. Replace
if deteriorated and cracked.

Checking the relief valve

1. Check the up-relief valve 1 and down-
relief valve 2. Clean if there is dirt or
residue.
2
2. Check the valve seat. Clean if there is
dirt. Replace if damaged or worn.
61U70290
1
61U70300
61U5H11