Disassembling The Gear Pump; Checking The Valves - Yamaha F100C Service Manual

BRKT

Disassembling the gear pump

1. Remove the gear pump 1.
2. Remove the relief valve seat 2 and relief
valve seal 3.
3. Remove the manual valve 4 and manual
valve seat 5.
4. Remove the main valves 6 and shuttle
piston 7.
5. Remove the main valve 8 and relief
valve seat 9.
7-83
Bracket unit
S60C7780
S60C7785

Checking the valves

1. Check the operation of the check valve
a of the trim cylinder end screw and the
valve for dirt or residue. Clean if neces-
sary.
2. Check the operation of the trim piston
absorber valves 1 and tilt piston
absorber valves 2, and the valves for
dirt or residue. Clean if necessary.
S60C7790
S60C7815
60C5D11