Generac Power Systems 53187 User Manual
Page 79
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SECTION 2.4
DISASSEMBLY AND INSPECTION
1
Oil Pump (Continued)
INSPECTION AND REASSEM BLY:
1.
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
PAGE 2.4-10