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MRH800DS2 VIBRATORY ROLLER • OPERATION AND PARTS MANUAL — REV. #1 (04/12/11) — PAGE 33
TROUBLESHOOTING
Troubleshooting - Roller
SYMPTOM POSSIBLE PROBLEM SOLUTION
Unit does not travel. Parking brake still engaged? Release parking brake lever.
Unit does not travel or
travel is not smooth.
Defective centrifugal clutch? Repair or replace clutch.
Damaged rubber coupling and fl ange? Replace rubber coupling and fl ange.
Defective travel cable and link? Repair or replace travel cable and link.
Damaged scraper or too much mud in
scraper?
Replace or repair scraper.
Damaged or clogged oil fi lter? Replace fi lter.
Damaged or leaking hydraulic pipe? Repair or replace parts.
Low oil level or contaminated oil? Replenish or replace oil.
Damaged or leaking hydraulic pump? Repair or replace hydraulic pump.
Damaged or leaking hydraulic motor? Repair or replace hydraulic motor.
Damaged drum gear and bearing? Repair parts.
Bad drum rotation? Repair or replace drum.
Unit does not vibrate
or has weak vibration.
Defective centrifugal clutch? Repair or replace clutch.
Damaged or slipping V-belt? Replace V-belt or adjust tension.
Damaged vibration cable and linkage? Replace or repair vibration cable and linkage.
Damaged vibration clutch? Adjust or replace clutch.
Defective clutch vibrator pulley V-belt? Replace V-belt.
Vibrator does not turn smoothly with hand?
Check and repair vibrator. Check if oil level is
not excessively high.