LOWLANDER MK4 MANURE SPREADER – INSTRUCTION & SPARES MANUAL
3.3 FLOOR DRIVE RELIEF VALVES
To adjust relief valve pressure
No.1
Cartridge contols movement of floor to rear. To increase pressure release locknut turn
screw clockwise and retighten locknut.
To decrease pressure turn screw anticlockwise.
No.2
Cartridge controls movement of floor to front. To increase pressure release locknut turn
screw clockwise and retighen locknut.
To decrease pressure turn screw anticlockwise.
NOTE
Maximum protection can be given to moving parts by keeping relief valve pressure set
to a minimum.
The factory set pressure for the valve is 2000 PSI (138 bar).
This valve is cross line type
and fitted to the hydraulic
motor on the floor drive
gearbox. The pressure can be
varied to suit the material
being spread. To adjust,
engage the oil flow via the
spool valve on the tractor,
insert the Allen key to prevent
the screw from rotating whilst
slacking off the lock nut. Use
the Allen key, turn the screw
clockwise to increase pressure
until the floor starts to move.
Use the Allen key prevent
rotation of screw and
retighten the lock nut.
To decrease the pressure,
reverse procedure. When
making this adjustment, the
spreader pressure should be
set lower than the tractor
PRV.
Note:
When the 1000/70 gearbox is fitted the motor
is rotated 180 degrees.
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