Checking And Adjusting Valve Lash; Cleaning Fuel Strainer And Fuel Filter; Cleaning The Generator - Westinghouse WGen5300s User Manual

MAINTENANCE

CHECKING AND ADJUSTING VALVE LASH

Checking and adjusting valve lash
must be done when the engine is cold.
1. Remove the rocker arm cover and carefully remove
the gasket. If the gasket is torn or damaged, it must
be replaced.
2. Remove the spark plug so the engine can be rotated
more easily.
3. Rotate the engine to top dead center (TDC) of the
compression stroke. Looking through the spark plug
hole, the piston should be at the top.
4. Both the rocker arms should be loose at TDC on the
compression stroke. If they are not, rotate the engine
360°.
5. Insert a feeler gauge between the rocker arm and the
push rod and check for clearance (see Figure 26). See
Table 3 for valve lash specifications.
1
(1) Push Rod, (2) Feeler Gauge Area
(3) Rocker Arm, (4) Jam Nut, (5) Adjusting Nut
(Table 3) Standard Valve Lash
Intake Valve
0.0035 ± 0.0043 in
Valve Lash
(0.09 ± 0.11 mm)
Bolt Torque
26 | Westinghouse Outdoor Power Equipment, LLC
CAUTION
2
3
5
Figure 26
Exhaust Valve
0.0043 ± 0.0051 in
(0.11 ± 0.13 mm)
8-12N.m 8-12N.m
6. If an adjustment is required, hold the adjusting nut and
loosen the jam nut.
7. Turn the adjusting nut to obtain the correct valve lash.
When the valve lash is correct, hold the adjusting nut
and tighten the jam nut to 106 in-lb (12 N•m).
8. Recheck the valve lash after tightening the jam nut.
9. Perform this procedure for both the intake and
exhaust valves.
10. Install the rocker arm cover, gasket and spark plug.
CLEANING FUEL STRAINER AND
FUEL FILTER
1. Remove all fuel from
gas tank.
2. Loosen bolt holding
fuel valve in bottom of
the fuel tank.
3. Remove fuel valve
assembly and unscrew
bottom cup.
4. Clean fuel filter, screen
and strainer cup with
brush and wash off with
gasoline.
5. Tightly fasten the cup to main body and
4
reinstall tightly to bottom of gas tank to
prevent leaks.

CLEANING THE GENERATOR

It is important to inspect and clean the generator after
every use.
Clean All Engine Air Inlet and Outlet Ports – Make sure
all engine air inlet and outlet ports are clean of any dirt
and debris to ensure the engine does not run hot.
Clean All Engine Cooling Fins – Use a damp rag and
a brush to loosen and remove all dirt on or around the
engine's cooling fins.
Clean All Alternator Cooling Air Inlets and Exhaust
Ports – Make sure the cooling air inlets and exhaust ports
of the alternator are free of any debris and obstructions.
Use a vacuum cleaner to remove dirt and debris stuck in
the cooling air inlets and exhaust ports.
General Cleaning of the Generator – Use a damp rag to
clean all remaining surfaces.
Fuel Filter
Body
Screen
O-Ring
Cup