Ariens 992808-ProZoom 3166S Specifications Page 31

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Engine Idling Poorly 1. Carburetor incorrectly adjusted.
2. Improper spark plug gap.
1. Contact Dealer.
2. Check and regap spark plugs.
Engine Backfires 1. Carburetor adjusted incorrectly. 1. Contact Dealer.
Engine Runs But Unit
Won’t Move
1. Drive belt loose or broken.
2. Hydraulic reservoir oil low.
3. Pump bypass valve open.
4. Hydraulic oil filter plugged.
5. Bad pump or motor.
1. Tighten or replace drive belt.
2. Refill reservoir.
3. Close bypass valve.
4. Replace hydraulic oil filter.
5. Contact Dealer.
Unit Loses Power or
Hydraulic System
Overheats
1. Hydraulic oil reserve too low.
2. Hydraulic oil reservoir out of cap.
1. Refill reservoir.
2. Overfill or water contaminated.
Loss of Power or
System Will Not
Operate in Either
Direction
1. Restrictions in air cleaner.
2. Poor compression.
3. Steering linkage needs adjustment.
4. Hydraulic bypass valve open.
5. Pump belt broken or worn.
6. Pump belt off of pulley.
1. Service air cleaner.
2. Contact Dealer.
3. Contact Dealer.
4. Close bypass valve.
5. Replace belt.
6. Reinstall belt on pulley.
Engine Overheats 1. Air intake screen clogged.
2. Cooling fins clogged.
1. Service air intake screen.
2. Clean fins.
Engine Stalling While
Blades Engaged
1. Operator not in seat.
2. Faulty safety system.
3. Spindle bearing failure.
4. Blades locked by foreign matter.
1. Sit on seat.
2. Contact Dealer.
3. Contact Dealer.
4. Clean underside of deck.
Low Engine Oil
Pressure
1. Low oil level.
2. Oil diluted or too light.
1. Add oil.
2. Change oil and locate source of
contamination.
High Oil Consumption 1. Numerous possibilities. 1. Contact Dealer.
Engine Will Not Turn
Over
1. Dead Battery.
2. Bad ground connection.
3. Poor terminal connection at battery.
4. Poor wiring harness connections.
5. Bad parking brake switch.
6. Bad PTO switch.
7. Steering control levers not in park position.
8. PTO switch engaged.
9. Operator not in seat.
10. Blown fuse.
1. Charge battery. See Battery Maintenance
on page 21.
2. Correct the connection.
3. Correct the connection.
4. Correct the connection.
5. Contact Dealer.
6. Contact Dealer.
7. Place steering control levers in park
position.
8. Disengage switch.
9. Sit in seat.
10. Replace fuse.
Engine Turns Over But
Doesn’t Start – There
Is Spark at Spark Plug.
1. No fuel or line plugged.
2. Bad fuel solenoid.
3. Dirt in fuel filter.
4. Dirt or water in fuel or stale fuel.
5. Incorrect fuel in fuel system.
6. Choke is not on.
1. Fill tank or replace line.
2. Contact Dealer.
3. Replace fuel filter.
4. Contact Dealer.
5. Drain tanks and replace with proper fuel.
6. Move choke lever to on position.
TROUBLESHOOTING
PROBLEM PROBABLE CAUSE CORRECTION
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