2-24 PERIODIC MAINTENANCE
INITIAL ENGAGEMENT AND CLUTCH LOCK-UP INSPECTION
The LT-F250 is equipped with a centrifugal type automatic
clutch.
To insure proper performance and longevity of the clutch
assemblies, it is essential that the clutches engage smoothly
and gradually. Before checking the initial engagement and
clutch lock-up, two inspection checks must be performed to thor-
oughly check the operation of the drive train. Perform the follow-
ing:
• Check the oil level. (2-9)
• Warm up the engine.
INITIAL ENGAGEMENT INSPECTION
• Connect the tachometer or the multi circuit tester onto the
spark plug high-tension cord.
• Start the engine.
• Shift the gear shift lever to the “1st” position.
• Slowly open the throttle and note the engine speed (r/min)
when the vehicle begins to move forward.
09900-26006: Tachometer, or
09900-25008: Multi circuit tester set
Engagement speed: 1 700 – 2 100 r/min.
If the engagement speed does not coincide with the standard
range, inspect the following items for any abnormalities.
* Clutch shoes . . . . . . . . . . . . . . . . . . . . . . . . 3-40
* Clutch wheel . . . . . . . . . . . . . . . . . . . . . . . . 3-40
CLUTCH LOCK-UP INSPECTION
Perform this inspection to determine if the clutch is engaging
fully and not slipping.
• Connect a tachometer onto the spark plug high-tension code.
• Start the engine.
• Shift the gear shift lever to the “5th” position.
• Apply the front and rear brakes as firmly as possible.
• Fully open the throttle for a brief period and note the maxi-
mum engine speed sustained during the test cycle.
Lock-up speed: 3 100 – 3 600 r/min.
If the lock-up speed (r/min) does not coincide with the standard
range, inspect the following items for any abnormalities.
* Clutch shoes . . . . . . . . . . . . . . . . . . . . . . . . 3-40
* Clutch wheel . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Do not apply full power for more than 5 seconds or
damage to the clutch or engine may occur.
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