Maintenance Procedures Every 250 Hours or 6 Weeks
8000 SRM 707
4.3L Electronic Engine Control - Troubleshoot-
ing and Repair (Later Models) 2200 SRM 782 or
Electronic Control Module (ECM) GM 3.0L and
4.3L EPA Compliant Engines2200 SRM 1090
Engine Speed, Diesel, Perkins 704-26 (UB)
The engine must be at the normal operating temper-
ature. Use a tachometer that can check the speed of
a diesel engine. See Figure 24.
1.
MAXIMUM FUEL ADJUSTMENT SCREW
2.
MAXIMUM SPEED STOP SCREW
3.
IDLE SPEED STOP SCREW
4.
INJECTION PUMP CONTROL LEVER
Figure 24. Diesel Engine Fuel-Injection Pump
1.
To adjust the low idle speed, do the following:
a. Loosen lock nut.
b. Turn adjustment screw until idle speed is
within specifications shown in the Mainte-
nance Schedule.
c.
Tighten lock nut.
2.
To adjust the maximum speed, do the following:
a. Loosen lock nut.
b. Turn adjustment screw until idle speed is
within specifications shown in the Mainte-
nance Schedule.
c.
Tighten lock nut.
3.
To make sure the throttle opens completely, do
the following:
CAUTION
The adjustment of the throttle cable must be
correct, or it can break during operation. The
accelerator pedal or the MONOTROL pedal
must reach the pedal stop (floor plate) by the
time the throttle lever on the fuel-injection
pump reaches its stop.
a. Loosen two lock nuts on cable housing at
bracket near fuel-injection pump. Make sure
cable housing can move in bracket.
b. Hold throttle or MONOTROL pedal in fully
open position.
c.
Move lock nuts to hold cable housing in this
position. Tighten lock nuts.
Engine Speed, LPG Carburetor, Mazda
and GM (Aisan Open-Loop and Aisan
Closed-Loop)
1.
Adjustment procedures for the Aisan Open-Loop
Emission System may be found in LPG Fuel
System, Aisan Open-Loop 900 SRM 925.
2.
Adjustment procedures for the Aisan Closed-
Loop Emission System may be found in LPG
Fuel System, Aisan Closed-Loop 900 SRM
948 or LPG/Gasoline Fuel System, GM 3.0L
and 4.3L EPA Compliant Engines 900 SRM
1088
Engine Speed, LPG Carburetor, Mazda
(Impco)
1.
The engine must be at the normal operating tem-
perature. Connect a tachometer to engine.
2.
Turn idle speed screw until idle speed is within
specifications shown in the Maintenance Sched-
ule. See Figure 25.
3.
Turn idle mixture screw two to four turns from
full IN position. Check and adjust idle speed as
necessary.
38
Содержание H177
Страница 1: ...PERIODIC MAINTENANCE S H40 65XM H177 D187 PART NO 1456991 8000 SRM 707...
Страница 6: ...THE QUALITY KEEPERS HYSTER APPROVED PARTS...
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