JLG T350 Troubleshooting Manual page 131

4.1 POSSIBLE CAUSES
Item
4.1.74 (Gas Only) Dump Valve may be defective
4.1.75 (Gas Only) High Idle Inoperable
4.1.76 (Gas Only) Engine may be mechanically defective
4.1.77 (Gas Only) Engine start solenoid may be defective
4.1.78 (Gas Only) Engine throttle pull solenoid may be defec-
tive
4.1.79 (Gas Only) Engine start motor may be defective
4.1.80 (Gas Only) Engine throttle relay may be defective
4.1.81 (Gas Only) Engine stop relay may be defective
4.1.82 (Gas Only) Engine speed feedback incorrect
4.1.83 (Gas Only) Engine may be out of fuel
4.1.84 (Gas Only) Fuel may be old or bad
4.1.85 (Gas Only) Fuel valve may be turned off
4.1.86 (Gas Only) Engine choke may be open
4.1.87 (Gas Only) Engine oil level may be low
4.1.88 (Gas Only) Spark plug may be faulty
4.1.89 (Gas Only) Fuel filter may be clogged
4.1.90 (Gas Only) Air filter may be clogged
4.1.91 (Gas Only) Fuel system may be clogged
4.1.92 (Gas Only) Carburetor may be flooded
4.1.93 (Gas Only) Engine idle setting may be too low
3121203
Possible Cause Possible Solution
Repair or replace
See1.8 Engine High Idle Inoperative - Engine Models
Contact Factory
Repair or replace
Repair or replace
Repair or replace
Repair or replace
Repair or replace
Repair Wht/Yel 48-7 between X001.16 and X095 or contact factory
Refuel
Drain fuel tank and carburetor. Refuel with fresh gasoline
Move engine fuel lever to ON
Engage the choke, unless engine is warm
Check/Add oil
Gap or replace spark plug
Clean or replace
Clean or replace
Repair or replace
Dry and reinstall spark plug. Start engine with throttle in fast position
Increase idle speed to specified value
T350 T500J
SECTION 4 - POSSIBLE CAUSES
4-131