Filter
Top Products
HTXD6i RIDE-ON TROWEL • OPERATION MANUAL —REV. #0 (03/23/12) — PAGE 39
TROUBLESHOOTING
Troubleshooting (Diesel Engine) - continued
Symptom Possible Problem Solution
Low engine power output and low speed,
black exhaust smoke.
Air fi lter blocked? Clean or replace air fi lter.
Incorrect valve clearances? Adjust valves per engine specifi cation.
Malfunction at injector? See engine manual.
Engine overheats.
Too much oil in engine crankcase?
Drain off engine oil down to uppermark on
dipstick.
Entire cooling air system contaminated/
blocked?
Clean cooling air system and cooling fi n
areas.
Fan belt broken or elongated? Change belt or adjust belt tension.
Coolant insuffi cient? Replenish coolant.
Radiator net or radiator fi n clogged with dust? Clean net or fi n carefully.
Fan, radiator, or radiator cap defective? Replace defective part.
Thermostat defective? Check thermostat and replace if necessary.
Head gasket defective or water leakage? Replace parts.
Engine oil pressure indicator stays on.
Faulty engine oil pressure switch? Contact your nearest MQ service center.
No or low level of engine oil? Check and adjust oil level as necessary.
Clogged engine oil fi lter Replace engine oil fi lter.
Engine coolant indicator turns on.
Low engine coolant level? Add engine coolant.
Dirty radiator fi ns? Clean radiator fi ns.
Engine coolant leaking? Contact your nearest MQ service center.
V-Belt loose or damaged? Adjust or replace V-belt.
Contaminated engine coolant? Contact your nearest MQ service center.
Faulty engine coolant pump? Contact your nearest MQ service center.
Battery indicator turns on.
V-belt loose or damaged? Adjust or replace V-belt.
Battery Failure? Check battery condition.
Faulty Alternator? Contact your nearest MQ service center.