8-16 673831-Rev A
CUTTING UNITS
8
Mechanical Troubleshooting
Condition Probable Cause Remedy
Reel drive motor does not turn. Mow switch not engaged. Engage mow switch. (Refer to “Safety and
Operation Manual.”)
Mow speed lever not in mow position. Move mow speed lever to mow position.
(Refer to “Safety and Operation
Manual.”)
Seat switch faulty. Test seat switch. (See “Seat Switch Test”
on page 4-54.)
Mow switch faulty. Test mow switch. (See “Mow Switch Test”
on page 4-55.)
Reel drive motor faulty. Repair or replace reel drive motor. (See
“Reel Drive Motor” on page 8-24.)
Reel drive motor does not reach full
speed.
Reel drive motor faulty. Repair or replace reel drive motor. (See
“Reel Drive Motor” on page 8-24.)
Bedknife-to-reel contact too tight. Check bedknife-to-reel adjustment. (See
“Bedknife-to-Reel Clearance
Adjustment” on page 8-18.)
Cutting unit roller does not rotate. Roller is out of round and restricted by
scraper and/or scraper is bent.
Replace roller or scraper. (See “Front
Roller” on page 8-36 or “Rear Roller”
on page 8-37.)
Roller bearing faulty. Replace roller bearing. (See “Front Roller
Bearings” on page 8-36 or “Rear Roller
Bearings” on page 8-38.)
Bedknife adjustment rod difficult to turn. Slotted nut overtightened. Reseat/loosen slotted nut. (See “Bedknife
Backing Assembly” on page 8-27.)
Compression spring overcompressed. Adjust compression spring distance. (See
“Bedknife Backing Assembly” on
page 8-27.)
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