Idling Speed And Maximum Speed Setting Inspection And Adjustment - Mitsubishi S4Q User Manual

IDLING SPEED AND MAXIMUM SPEED
SETTING INSPECTION AND ADJUSTMENT
Governer set
bolt
Speed control lever
Figure 209 Starting the engine
142 / 174
TESTING AND ADJUSTING
32 IDLING SPEED AND
NOTE
Prior to inspection and adjustment, warm up the
engine until coolant and oil temperature rise to 70°C
[158°F] or higher.
1. Starting the engine
1)
Idle sub-
spring
2)
adjusting
screw
3)
Low idling
set bolt
ENGLISH
TESTING AND ADJUSTING
MAXIMUM SPEED
SETTING INSPECTION
AND ADJUSTMENT
CAUTION
a The idling speed (no-load) and maximum
speed are set for each engine at factory
bench testing, then the set bolts are sealed.
These settings are to be inspected and
adjusted at Mitsubishi service shops only.
b After adjusting the governor be sure to seal
the stopper.
c The stoppers are specified to be sealed.
Whether the seals are intact or not has
importance bearing on the validity of claims
under the warranty.
d When inspecting and adjusting these
settings, be ready to operate the engine stop
lever manually against the engine
overrunning.
Pull the speed control lever toward the HIGHS
SPEED side, and operate the starter switch.
The engine ignites when the rotation speed
reaches approximately 150 rpm. When the
engine speed starts to increase, operate the
speed control lever and maintain the engine
speed between 800 and 1000 rpm.
After the engine speed stabilizes, return the
speed control lever to the low idling position.
Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004