Adjusting Valve Clearance; Battery Maintenance - Generac Power Systems 10 kW Owner's Manual

Maintenance
6.
See Figure 4-7 or
clearance between each rocker arm (A)
and valve stem (B) with a feeler gauge.
.
A
Figure 4-7. Valve Clearance Adjustment
(10 kW)
B
C
Figure 4-8. Valve Clearance Adjustment
(20–26 kW)
7.
Install replacement valve cover gasket(s).
10 kW
14–18 kW
20–26 kW
8.
Install valve cover(s). Tighten fasteners in
a cross pattern, tightening to:
10 kW 80 in-lbs (9.0 Nm)
20–26 kW 60 in-lbs (6.8 Nm)

Adjusting Valve Clearance

WARNING
Risk of Burn. Allow the engine to cool before
performing the following procedure. Failure
to do so could result in serious injury.
IMPORTANT NOTE:
required on 14 or 18 kW units with 816cc
engine. See Engine.
See Figure 4-7 or Figure
lows to ad-just valve clearance:
NOTE: Allow engine to cool before adjusting
valve clearance.
27
Figure 4-8. Verify valve
B
C
001812
D
002380
0K8946
10000014927
0C2979
(000560)
Valve lash
4-8. Proceed as fol-
1.
Remove spark plug wire(s) and position
spark plug wire(s) away from spark
plug(s).
2.
Remove spark plug(s).
3.
Remove the four screws attaching valve
cover. Remove and discard gasket.
4.
Verify piston is at TDC of its compression
stroke (both valves closed).
D
5.
Loosen rocker jam nut (C) using a 10 mm
wrench (10 kW units) or 13 mm wrench
(20–26 kW units).
6.
Turn pivot ball stud (D) using a 14 mm
wrench (10 kW units), or 10 mm hex key
(20–26 kW units) while inspecting clear-
ance between rocker arm (A) and valve
stem (B) with a feeler gauge. Adjust clear-
ance as per Engine.
NOTE: Hold rocker jam nut in place as pivot
ball stud is turned.
7.
When valve clearance is correct, hold
pivot ball stud in place with a wrench and
A
tighten rocker arm jam nut. Tighten jam
nut according to:
10 kW
20–26 kW
8.
Inspect valve clearance to verify it did not
change.
9.
Install new valve cover gasket.
10.
Install valve cover. Tighten fasteners in a
cross pattern. Tighten to:
10 kW
20–26 kW
NOTE: Start all four screws before tightening,
or it will not be possible to get all screws in
place. Verify valve cover gasket is in place.
11.
Install spark plug(s) and tighten to 18 ft-lbs
(25 Nm).
12.
Attach spark plug wire(s) to spark plug(s).
13.
Repeat process for other cylinder if
equipped.

Battery Maintenance

not
Electrocution. Do not wear jewelry while
working on this equipment. Doing so will
result in death or serious injury.
Owner's Manual for 60 Hz Air-Cooled Generators
53 in-lbs (6.0 Nm)
174 in-lbs (19.68 Nm)
80 in-lbs (9.0 Nm)
60 in-lbs (6.8 Nm)
DANGER
(000188)