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Troubleshooting - 46
TROUBLESHOOTING
Machine
Park Brake
Steering
Mower Deck
PTO Clutch Does Not
Engage
Blown 20-amp fuse (main power
circuit).
Faulty PTO switch.
Faulty PTO clutch.
Loose PTO clutch connections.
Starter Turns Slowly Loose or corroded battery or ground
connections.
Low battery power - charge battery.
Engine oil viscosity too heavy.
Hydraulic pump linkages failed and are
engaged.
If Check
Excessive Machine Vibration Engine speed too slow.
Machine Will Not Move With
Engine Running
Park brake locked.
Transmission hydraulic oil level low.
Transmission oil cold - allow engine to
warm.
Traction drive belt slipping.
Hydraulic pump free-wheel valves
open.
Traction drive belt damaged or worn.
Hydrostatic pump and/or wheel motor
problems. See your Great Dane
servicing dealer.
Machine Creeps With Engine
Running and Motion Control
Levers in a Neutral Position
Needs shift control linkage adjustment.
If Check
Park Brake Not Working
Correctly
Brakes out of adjustment - adjust
linkage.
Brake drums wet.
Worn brake shoes.
Brake cable damaged.
If Check
Steering Not Working Park brake locked.
Hydraulic pump free-wheel valves
partially open.
Improper tire Inflation.
Hydrostatic transmission oil low.
Traction drive belt slipping.
Traction drive belt damaged or worn.
If Check
Machine Will Not Follow a
Straight Path
Steering tracking out of adjustment.
Machine Moves to the Left or
Right With Engine Running
and Transmission in Neutral
Pump linkage (neutral position) out of
adjustment.
If Check
Discharge Chute Plugged Grass is wet - mow grass only when
dry.
Raise cutting height.
Mow at full throttle.
Ground speed too fast for conditions.
Correct installation of deck drive belt.
Mower Deck Vibrates Run engine at full throttle.
Loose hardware.
Check/replace mower deck drive belt.
Blades bolts are loose.
Blades are bent or worn.
Sharpen and balance blades.
Remove belt shields and check for
debris on sheaves.
Check sheaves for proper alignment or
damage. See your Great Dane
servicing dealer.
Mower Blades Do Not
Engage
Mower deck drive belt slipping or
broken.
Mower deck belt tension spring not
installed or broken.
PTO switch failure.
20-amp fuse is blown (main power
circuit).
Loose electrical connections.
Faulty PTO clutch.
Mower Mows Unevenly Mower deck not properly leveled.
Ground speed too fast for conditions.
Run engine at full throttle.
Reduce ground speed when making
turns.
Blades are bent or worn.
Sharpen or replace blades.
Change mowing pattern.
Check tire pressure.
If Check