Problem
Possible Cause
Corrective Action
1. The engine load is excessive.
1. Reduce the ground speed.
2. The air cleaner is dirty.
2. Clean the air-cleaner element.
3. The oil level in the crankcase is low.
3. Add oil to the crankcase.
4. The cooling fins and the air passages
above the engine are plugged.
4. Remove the obstruction from the
cooling fins and the air passages.
5. The vent hole in the fuel cap is plugged.
5. Clean or replace the fuel cap.
6. There is dirt in the fuel filter.
6. Replace the fuel filter.
The engine loses power.
7. There is dirt, water, or stale fuel in the
fuel system.
7. Contact an Authorized Service Dealer.
1. The engine load is excessive.
1. Reduce the ground speed.
2. The oil level in the crankcase is low.
2. Add oil to the crankcase.
The engine overheats.
3. The cooling fins and the air passages
above the engine are plugged.
3. Remove the obstruction from the
cooling fins and the air passages.
1. The tracking needs adjustment
1. Adjust the tracking.
The mower pulls to the left or right (with
levers fully forward)
2. The tire pressure in the drive tires is
not correct.
2. Adjust the tire pressure in the drive
tires.
1. The bypass valves are not closed tight.
1. Tighten the bypass valves.
2. The pump belt is worn, loose, or
broken.
2. Change the belt.
3. The pump belt is off a pulley.
3. Change the belt.
4. The idler spring is broken or missing.
4. Replace the spring.
The machine does not drive.
5. The hydraulic-fluid level is low or too
hot.
5. Add hydraulic fluid to the reservoirs or
let it cool down.
1. The cutting blade(s) is/are bent or
unbalanced.
1. Install new cutting blade(s).
2. The blade mounting bolt is loose.
2. Tighten the blade mounting bolt.
3. The engine mounting bolts are loose.
3. Tighten the engine mounting bolts.
4. The engine pulley, idler pulley, or blade
pulley is loose.
4. Tighten the appropriate pulley.
5. The engine pulley is damaged.
5. Contact an Authorized Service Dealer.
6. The blade spindle is bent.
6. Contact an Authorized Service Dealer.
The machine vibrates abnormally.
7. The motor mount is loose or worn.
7. Contact an Authorized Service Dealer.
1. The blade(s) is/are not sharp.
1. Sharpen the blade(s).
2. The cutting blade(s) is/are bent.
2. Install new cutting blade(s).
3. The mower deck is not level.
3. Level the mower deck from side-to-side
and front-to-rear.
4. The underside of mower is dirty.
4. Clean the underside of the mower.
5. The tire pressure is not correct.
5. Adjust the tire pressure.
The machine produces an uneven cutting
height.
6. The blade spindle is bent.
6. Contact an Authorized Service Dealer.
1. The mower deck belt is worn, loose,
or broken.
1. Install a new deck belt.
2. The mower deck belt is off pulley.
2. Install the mower deck pulley and
check the idler pulley, idler arm, and
spring for correct position and function.
3. The pump drive belt is worn, loose, or
broken.
3. Check the belt tension or install a new
belt.
The blades do not rotate.
4. The idler spring is broken or missing.
4. Replace the spring.
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Содержание Z Master 74926
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