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

SECTION 10: TROUBLE-SHOOTING
Trouble Possible Cause Remedial Action
Excessive vibration 1, Bent or damaged blade 1,
2. Bent blade, 2,
Mower will not 1, Engine speed low. 1,
discharge grass or 2, Speed selection, 2,
leaves uncut strips
3, Cutting height set too low. 3,
4, Blades short or dull. 4,
Broken Belt 1, Sudden stop or shock load to belt 1,
Belt comes off
Belt shreds
2. Incorrect belt used
3. Belt engaged abruptly
4. Defective or damaged belt
1. Belt too loose; stretched
2. Broken or weak idler spring
1. Belt guides or guards incorrectly adjusted
2. Pulleys not aligned
3,
Pulley rusted or in otherwise bad condition;
frozen bearing
Stop engine immediately. Check all
pulleys, blade adapters, keys and bolts for
tightness and spindle damage. Tighten or
replace any damaged parts.
Stop engine immediately. Replace
damaged blade. Only use original
equipment blades.
Throttle must be set at full throttle.
Use lower ground speed. Slower the
ground speed, better the quality of cut.
Raise the deck.
Sharpen or replace blades (uncut strip
problem only).
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 bell
when engaged.
2. Realign pulleys to be within approximately
1/16 inch of each other. Check with straighf
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.
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