MacDon M155 Operators Manual - Manual (Page 410)

TROUBLESHOOTING
6.3 Hydraulics Troubleshooting
Symptom Problem Solution Section
Appropriate solenoids not being
energized by activating switch
Contact Dealer. Contact Dealer.
Header or reel not
lifting
Contaminant in relief valve
Clean relief valve at cylinder
control valve.
Header or reel lifts
but lacks power Relief pressure too low or
contaminant in relief valve Check/adjust/clean relief valve at
cylinder control valve.
Contact Dealer.
HEADER DRIVE switch not
engaged
Engage HEADER DRIVE switch.
Engaging and
Disengaging the
Header, page 145
Flow controls adjusted too low
Toggle speed controls on CDM to
increase flow.
D-Series: 4.6.7
Draper Speed,
page 232 , and
4.6.6 Reel Speed,
page 229
A-Series: 4.7.1
Auger Speed,
page 240
R-Series: 4.9 Disc
Speed, page 248
Reel and/or
conveyor not
turning
Appropriate solenoid on flow
control block not being energized
Contact Dealer.
Reel and/or
conveyor turns
but lacks power
Relief pressure too low Check/adjust/clean relief valve.
Contact Dealer.
Hydraulic oil cooling system not
working properly
Check/clean cooling box.
Maintaining
Engine Cooling
Box, page 315
Hydraulic oil
high-temperature
alarm
Faulty bypass valve Clean or replace. Contact Dealer.
Hydraulic oil
low-temperature
alarm
Hydraulic oil too cold
Run engine until hydraulic oil
warms up.
—
169883
394
Revision A