Generac Power Systems 53187 User Manual

Page 79

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SECTION 2.4
DISASSEMBLY AND INSPECTION

Oil Pump (Continued)

INSPECTION AND REASSEM BLY:

Inspect the OIL PUMP COVER, ROTOR and VANE

for w ear. Replace if w orn or dam aged.

2. Check the clearance be
tw een

the

ROTOR

and

VANE. If clearance Is exces
sive, replace parts.

3. Reassem ble the oil pum p in the reverse order of
disassem bly.
a. W hen reassem bling, align the set m arks on the
crankshaft gear and the idle gear.
b. Adjust the side clearance betw een the rotor and vane
to 0.0039-0.0059 inch (0.1-0.15m m ).

PART 2

ENGINE MECHANICAL

Water Pump & Thermostat

Refer to Part 3,

•ENGINE LUBRICAT ION AND

CO OLING SYST EM ".

Fuel Filter & Feed Pump

See Part 4 of this m anual,

’ENGINE FUEL SYS

TEM ’.

Governor & Injection Pump

See Part 4,

’ENGINE FUEL SYST EhT .

Nozzles and Holders

See Part 4,

’ENGINE FUEL SYST EM ".

Oil Filter

CONSTRUCTION AND FUNCTION:

The oil filter is a cartridge type. A SAFETY VALVE

w ill open to bypass oil around the filter if the filter should

becom e clogged. See Figure 32. Pressure oil from the
oil pum p enters at “A". The oil is filtered and then exits
the filter at “B".

REPLACEMENT;

Replace the oil filter every 200 hours of operation.

Prior to installing a new filter, coat its m ounting face w ith

clean oil. Tighten the filter w ith the hand only. Do not

reuse the rem oved filter.

Figure 32. Oil Filter

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