MacDon M100 SP Operators Manual - Manual (Page 157)

MAINTENANCE/SERVICE
169304
155
Rev. C
57.9.5 Header and Reel Hydraulics
57.9.5.1 Pressure Compensator Valve
The pressure compensator valve is pre-set to be
sufficient for all header sizes and options. See
table below.
When the knife drive pressure approaches the
compensator valve setting, a warning tone
sounds on the CDM, indicating a potential
overload on the header drive. If operation
continues, and the pressure reaches the setting,
the compensator valve is activated. The header
drive will begin to slow down. To avoid
overheating the drive pumps, reduce the ground
speed to maintain the correct system load and
knife drive operation.
NOTE
The warning tone is normal when the
operating pressure is very close to the
compensator valve pressure setting.
If lift and reel or draper drive capacity problems
develop, the pressure compensator valve may
require adjusting. Contact your Windrower
Dealer or refer to the Technical Service Manual
for your Windrower.
HEADER MODEL APPLICATION/SYSTEM SUGGESTED OVERLOAD
WARNING SETTING
psi (kPa)
WINDROWER
PRESSURE COMP
SETTING
psi (kPa)
D60 & A40D Reel/Draper Pressure 3000 (20684) 3200 (22063)
D60 & A40D Knife/Conditioner Pressure 4000 (27579) 4200 (28958)
57.9.5.2 Reel/Conveyor Flow Control Block
Two hydraulic valve blocks control the reel and
conveyor functions, and are controlled by the
Windrower Control Module (WCM) according to
the inputs from the operator. The valve blocks
are located behind the maintenance platform.
The valve blocks do not require any scheduled
maintenance other than to check for leaking
fittings or loose electrical connections. If service
is required, contact your Windrower Dealer or
refer to the Technical Service Manual for your
Windrower.
57.9.5.3 Knife Drive Valve Block
The ON/OFF valve on the valve block regulates
the knife speed, and is mounted on top of the