Honeywell G0070632, Руководство пользователя, Страница: 34 / 44

Maintenance
30 Owner’s Manual for 60 Hz Air-Cooled Generators
Figure 4-7. Valve Clearance Adjustment (11-22 kW)
7. Install replacement valve cover gasket(s).
8. Install valve cover(s). Tighten fasteners in a cross
pattern, torquing to:
Adjust Valve Clearance
See Figure 4-6 or Figure 4-7 . Proceed as follows to
adjust valve clearance:
NOTE: Allow engine to cool before adjusting valve
clearance.
1. Remove spark plug wire(s) and position wire(s)
away from plugs.
2. Remove spark plug(s).
3. Remove four screws attaching valve cover.
Remove and discard gasket.
4. Verify piston is at top dead center (TDC) of its
compression stroke (both valves closed).
5. Loosen rocker jam nut (C) using a 10 mm wrench
(9-11 kW units) or 13 mm wrench (16-22 kW units.)
6. Turn pivot ball stud (D) using a 14 mm wrench (9
kW units), 8 mm wrench (11 kW units), or 10 mm
hex key (16-22 kW units) while checking clearance
between rocker arm (E) and valve stem (F) with a
feeler gauge. Adjust clearance as per
Engine .
NOTE: Hold the rocker jam nut in place as the pivot ball
stud is turned.
7. When valve clearance is correct, hold pivot ball
stud (D) in place with a wrench and tighten rocker
arm jam nut. Tighten jam nut according to the
following torque specifications:
8. After tightening jam nut, inspect valve clearance to
verify it did not change.
9. Install new valve cover gasket.
10. Install the valve cover. Tighten fasteners in a cross
pattern, torquing to:
NOTE: Start all four screws before tightening, or it will
not be possible to get all the screws in place. Verify the
valve cover gasket is in place.
11. Install spark plugs and tighten to 18 ft-lbs (25 Nm).
12. Attach the spark plug wire to the spark plug.
13. Repeat the process for the other cylinder if
equipped.
9 kW 80 in-lb (9.0 Nm)
11–22kW 60 in-lb (6.8 Nm)
002380
F
C
E
D
9 kW 53 in-lb (6.0 Nm)
11 kW 72 in-lb (8.2 Nm)
16–22kW 174 in-lb (19.68 Nm)
9 kW 80 in-lb (9.0 Nm)
11–22kW 60 in-lb (6.8 Nm)