MacDon M150 SP - Manual (Page 218)

TROUBLESHOOTING
* See your MacDon Dealer
** Refer to Windrower Technical Manual
Form 169017 / 169087 / 169095
216
Revision C
8.4 HEADER DRIVE
SYMPTOM PROBLEM SOLUTION SECTION
Header Drive Not Engaging.
Header drive switch in cab not
engaged.
Engage switch. 5.17.1
Appropriate solenoid not being
energized by activating switch.
Contact MacDon Dealer. *
Operator presence switch not
closed or faulty. Occupy Operator’s seat, or
replace switch.
*
Header Drive Lacks Power
Header drive overload. Reduce ground speed. 6.3.6
Compensator valve setting too low. Contact MacDon Dealer. *
Warning Alarm Sounds
Header drive overload. Reduce ground speed. 6.3.6
Compensator valve setting too low. Contact MacDon Dealer. *
8.5 TRACTION DRIVE
SYMPTOM PROBLEM SOLUTION SECTION
Warning Alarm Sounds And
Transmission Oil Light Is On.
Low hydraulic oil level.
Stop engine, and add oil to
hydraulic system.
7.12.1
Low hydraulic pressure.
Contact MacDon Dealer. *
Foreign material shorting sender.
Short in alarm wiring.
Faulty sender.
Wheels Lack Pulling Ability On A
Grade Or Pulling Out Of A Ditch.
Insufficient torque at drive wheels.
Move speed-range control to
field position, and reduce ground
speed.
6.3.6
Loose or worn controls. Check controls. 7.7.3
Air in system.
Use proper oil. 7.3.1.3
Check oil level, and leaks. 7.12.1
Check hydraulic oil filters. 7.12.4
Brakes binding or not releasing fully.
Check pressure [min. 200 psi
(1379 kPa)] on brake release
valve.
**
Internal pump or motor damage. Contact MacDon Dealer. *
Relief valve in tandem pump dirty or
damaged.
Replace relief valve. **
Both Wheels Will Not Pull In
Forward Or Reverse.
Low oil level. Check oil reservoir level. 7.12.1
Power hubs disengaged. Engage final drive. 6.3.8.4
Damaged hydraulic lines preventing
proper oil flow.
Replace damaged lines. *
Steering controls worn or defective.
Check GSL and steering for
loose, worn or dam-aged ball
joints and connecting rods.
7.7.3 &
7.7.4
Speed-range control not working. Contact MacDon Dealer. *
Pump arms have broken shaft or
loose hardware.
Repair or tighten. **
Brakes binding or not releasing fully.
Check pressure (min. 200 psi
[1379 kPa)] on brake release
valve.
**
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