MacDon A30-D Operator's Manual page 175

SYMPTOM
Knocking In Knife Drive.
Header Turns While
Unloaded But Slows Or Stops
When Starting To Cut.
Knife Back Breakage.
Windrower Side Drift.
Lights Malfunctioning.
169000
SECTION 8 TROUBLESHOOTING
PROBLEM
Worn needle bearing in
knife head.
Worn knife head pin.
Incorrect end guards.
Cold oil in system.
Dull knife.
Worn knife head pin.
Bent or broken guard.
Incorrect end guards at
knife head.
Header is dragging on one end
and pulling to that side.
Low tire pressure on one side
(pull-type).
Improper ground.
Burned out bulb.
Poor connection.
173
SOLUTION
Replace.
Replace with special
end guards.
Reduce ground speed until
oil reaches operating
temperature.
Replace.
Straighten or replace.
Replace with correct number
of special guards.
Adjust skid shoes to prevent
cutterbar dragging.
Adjust header flotation.
Check and correct tire
pressure (30 psi [207 kPa]).
Check for proper grounding
between light base
and header.
Replace bulb.
Check connector at
tractor/windrower.
SECTION
7.8.4
7.8.3
7.8.7
---
7.8.4
7.8.3
7.8.7
6.17.8.1
6.17.10
7.14.4
7.17
6.4.3
Revision F