SELVA MARINE Kingfish 25, Service Manual

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9
Checking the gear pump
1. Check the operation of the gear pump
shafts. Replace the gear pump assembly
if the shafts do not turn smoothly.
Checking the gear pump housing
1. Check the gear pump housing. Replace if
corroded or cracked.
Checking the valve seal
1. Check the valve seal and absorber valve
pins. Replace if damaged.
2. Check the main valves and shuttle pis-
ton. Replace if damaged.
3. Check the valve support pin, relief valve,
valve seal, and spring. Replace if dam-
aged.
4. Check the manual valve and spring.
Replace if damaged.
Checking the filter
1. Check the filters. Clean if there is dirt or
residue.
Assemble the gear pump housing
Lubricate the parts with ATF Dexron
II
during
assembly.
• Do not use a rag when assembling the
PTT unit because dust and particles
inside the PTT unit can lead to poor per-
formance.
• Do not reuse an O-ring, always replace it
with a new one.
1. Install new O-rings
1
and
2
to the relief
valve
3
.
2. Install a new O-ring
4
to the valve sup-
port pin
5
, and then install the valve sup-
port pin
5
into the relief valve
3
3. Install a new O-ring
6
to the valve lock
screw
7
G
H
I
J
K