Checking And Adjusting Valve Lash; Battery Service; Battery Replacement - Westinghouse WPro8500 Manual Del Usuario

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 wbetween the rocker arm and
the push rod and check for clearance (see Figure
23). See table below for valve lash specifications
1
(1) Push Rod, (2) Feeler Gauge Area
(3) Rocker Arm, (4) Jam Nut, (5) Adjusting Nut
WPro8500 and WPro12000 Standard Valve Lash
Intake Valve
Valve Lash 0.0031 ± 0.0047 in
(0.08 ± 0.12 mm)
Bolt Torque
6. If an adjustment is required, hold the adjusting nut
and loosen the jam nut.
22 | Westinghouse Outdoor Power Equipment
CAUTION
2
3
5
Figure 23
Exhaust Valve
0.0051 ± 0.0066 in
(0.13 ± 0.17 mm)
8-12N.m 8-12N.m
7. Turn the adjusting nut to obtain the correct valve
lash. When the valve lash is correct, hold the ad-
justing 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.

BATTERY SERVICE

To ensure the battery remains charged, the generator
should be started every 2 to 3 months and run for a
minimum of 15 minutes or a charger should be plugged
into the generator and the generator should be charged
overnight. Make sure the engine control switch is in the
"RUN" position when charging. Plug the cord from the
charger into the charging port on the generator. Plug
the charger into a 110/120-volt AC outlet.
4

Battery Replacement

1. Remove the spark plug wire from spark plug.
2. Loosen and remove the bolts on the battery hold
down plate and swing the plate out.
3. Tip the battery forward slightly to access battery
cables.
4. Disconnect the black negative (-) battery cable from
the battery first.
5. Disconnect the red positive (+) battery cable sec-
ond and remove the battery.
Dispose of the used battery properly according to
the guidelines established by your local or state
government.
6. Install the new battery into the generator frame.
7. Connect the red positive (+) battery cable to the
battery first.
NOTICE