VI-MMXII
Page 28
GENERAL CHECK LIST
7.1
Observe all fittings, pipes, tubes, and hoses for leakage. Tighten as needed.
7.2
Observe oil level in main tank. On truck mount or stationary units the dipstick capacity allowed
is 95 liters. (25 gallons)
7.3
On tractors, the maximum pump capacity required to operate the mixer is 53 liters per minute
(14 gpm) @ 2200 P.S.I.. The minimum pump capacity required to operate the mixer is 46 liters
per minute (12 gpm) @ 2200 P.S.I..
7.4
Manifold block specification is 53 liters per minute (14 gpm) @ 3000 P.S.I.
Caution: do not
exceed these limits.
7.5
Manifold relief valve is factory set @ 2200 P.S.I. for maximum safety to the system.
7.6
Manifold needle valve controls the speed at which the door opens. It may be adjusted as needed.
7.7
Discharge conveyor motor specification, maximum 57 liters per minute (15 gpm) @ 1700 P.S.I.
7.8
Discharge conveyor motor under normal operation requires a minimum of 46 liters per minute
(12 gpm) to a maximum of 53 liters per minute (14 gpm) to provide adequate unload speed. The
speed is controlled through the crossfeed flow control valve located on the mixer.
7.9
Stalling of the discharge conveyor motor may be caused by the loss of oil pressure (P.S.I.) to the
motor, due to incorrect adjustment of relief valve, or worn pump/ motor.
7.10
Slow speed of discharge conveyor motor may be caused by the loss of oil flow from the pump
source to the motor, due to worn pump or restricted flow in the tractor hydraulic system/hydraulic
hoses.
7.11
Truck mount and Stationary mixers have 12-volt solenoid valves to operate conveyor motor and
hydraulic door. Solenoids may be shifted manually by inserting 1/8” shaft into the hole at each
end of solenoid. This method will determine if the 12-volt power supply or the switches are
defective. This method can also be used to determine if the solenoid is struck or otherwise
defective resulting in a problem with the operation of the discharge.
7.12
For service see preventive maintenance and lubrication schedule in
Section 8.
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