Troubleshooting; General - Jacobsen 67963 – LF 4677 Handbuch

5

TROUBLESHOOTING

5 TROUBLESHOOTING
5.1

GENERAL________________________________________________________________

The troubleshootijng chart below lists basic problems that may occur during start-up and operation. For more detailed
information regarding the hydraulic and electrical systems contact your area Jacobsen Dealer.
Symptoms
Engine will not 1. Parking brake disengaged, traction
start.
2. Glow plug has not timed out.
3. Battery low on charge or defective.
4. Fuel tank empty or dirty.
5. Fuse blown.
6. Relay defective.
7. Neutral switch on traction pedal out
Engine hard to start 1. Fuel level low, fuel or fuel filter dirty.
or runs poorly.
2. Air cleaner dirty.
3. Injectors, fuel pump.
4. Engine problem.
Engine stops. 1. Fuel tank empty.
2. Interlocks not set before leaving
Engine 1. Coolant level low.
overheating.
2. Air intake restricted.
3. Water pump belt broken or loose.
Battery not holding 1. Loose or corroded battery terminals. 1. Inspect and clean terminals.
charge.
Battery light on. 2. Low electrolyte.
3. Alternator belt loose or broken.
4. Charging system defective.
Reels cut unevenly. 1. Bedknife-to-reel not adjusted cor-
2. Engine speed too low.
3. Mow speed not adjusted for turf
4. Mow switch set in Reverse.
5. Not enough rear roller pressure.
6. Front roller not following
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Possible Causes
pedal not in Neutral or mow switch
ON.
of adjustment or defective.
operator's seat.
rectly.
conditions.
undulations adequately.
Action
1. Check interlock system and start-up procedure.
2. Reset ignition switch and allow glow plug to time
out before cranking engine.
3. Inspect condition of battery and battery
connections.
4. Fill with fresh fuel. Change fuel filter. Bleed fuel
lines.
5. Replace fuse.
6. Test and replace relay.
7. Adjust or replace switch.
1. Fill with fresh fuel. Change fuel filter. Bleed fuel
lines.
2. Inspect and replace air filter.
3. Consult engine manual.
4. Consult engine manual.
1. Fill with fresh fuel and bleed fuel lines.
2. Engage parking brake and set mow switch to
"OFF".
1. Inspect and add coolant.
2. Clean air intake at radiator.
3. Tighten or replace belt.
2. Refill to correct level.
3. Tighten or replace belt.
4. See engine manual.
1. Inspect bedknife-to-reel adjustment.
2. Check engine speed. Run engine at full throttle.
3. Adjust mow speed for best cut.
4. Set for Forward rotation.
5. Move down pressure spring one hole towards
spring.
6. Move down pressure spring one hole away from
spring.