PETROL GENERATOR GT SERIES
OPERATOR’S MANUAL
TRADE SERIES
MAINTENANCE
Checking and adjusting valve lash
must be done when the engine is cold.
Do not charge for over 8 hours. Leaving the
charger plugged in indefinitely could
overcharge the battery and lead to battery
failure.
CAUTION
!
!
WARNING
!
!
CHECKING AND ADJUSTING VALVE LASH
BATTERY SERVICE
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 centre (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 24). See Table 3 for valve lash
specifications.
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.
BATTERY SERVICE
WARNING
Do not charge for over 8 hours. Leaving the
charger plugged in indefinitely could overcharge
the battery and lead to battery failure.
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
STOP
position when charging. Plug the cord from the
charger into the charging port on the generator control
panel. Plug the charger into a 110/120-volt AC outlet.
CHECKING AND ADJUSTING VALVE LASH
CAUTION
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 24). See
Table 3 for valve lash specifications.
1
2
3
4
5
Figure 24
(1) Push Rod, (2) Feeler Gauge Area
(3) Rocker Arm, (4) Jam Nut, (5) Adjusting Nut
(Table 3) Standard Valve Lash
Intake Valve
Exhaust Valve
Valve Lash
0.0035 ± 0.0043 in
(0.09 ± 0.11 mm)
0.0043 ± 0.0051 in
(0.11 ± 0.13 mm)
Bolt Torque
8-12N.m
8-12N.m
MAINTENANCE
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 Nm).
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.
Intake Valve
Exhaust Valve
Valve Lash
0.0035 ± 0.0043 in
(0.09 ± 0.11 mm)
0.0043 ± 0.0051 in
(0.11 ± 0.13 mm)
Bolt Torque
8-12 Nm
8-12 Nm
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 STOP position
when charging. Plug the cord from the charger into
the charging port on the generator control panel.
Plug the charger into a 110/120-volt AC outlet.
24
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