Troubleshooting - Yard-Man 13B-325-401 Operator's Manual

SECTION 10: TROUBLE-SHOOTING
Trouble
Excessive vibration 1.
2.
Mower will not 1.
discharge grass or 2.
leaves uncut strips
3.
4.
Broken Belt 1.
2.
3.
4.
Belt comes off 1.
2.
Belt shreds 1.
2.
3.
Possible Cause
Bent or damaged blade
Bent blade.
Engine speed low.
Speed selection.
Cutting height set too low.
Blades short or dull.
Sudden stop or shock load to belt
Incorrect belt used
Belt engaged abruptly
Defective or damaged belt
Belt too loose; stretched
Broken or weak idler spring
Belt guides or guards incorrectly adjusted
Pulleys not aligned
Pulley rusted or in otherwise bad condition;
frozen bearing
1. Stop engine immediately. Check all
pulleys, blade adapters, keys and bolts for
tightness and spindle damage. Tighten or
replace any damaged parts.
2. Stop engine immediately. Replace
damaged blade. Only use original
equipment blades.
1. Throttle must be set at full throttle.
2. Use lower ground speed. Slower the
ground speed, better the quality of cut.
3. Raise the deck.
4. Sharpen or replace blades (uncut strip
problem only).
1. Inspect rider for cause such as foreign
objects stuck in between deck and frame or
belt path. Remove obstruction and check
for damage. Replace belt if needed.
2. Replace with proper belt. Check Parts list
in this manual for correct part number.
3. Engage belt slowly by depressing the
blade engagement pedal slowly.
4. Replace with proper belt. Follow
instructions in Service and Adjustments
section.
1. Readjust belt. Replace if needed. Follow
instructions for belt replacement in the
Service and Adjustments section.
2. Replace. Order with correct part number
from Parts List in this manual.
1. Adjust belt guides and guards so that these
are approximately 1/16 to 1/8 inch from belt
when engaged.
2. Realign pulleys to be within approximately
1/16 inch of each other. Check with straight
edge. Make sure fastening hardware is
tight.
3. Replace pulleys. Order with correct part
number from the Parts List in this manual.
Adjust new pulleys to 1/16 inch.
20
Remedial Action