REED 00 C50SS, Manual, Page: 61 / 84

REED
00 MODEL:
C50SS
TRAILER CONCRETE PUMP
MAINT
PAGE 31
4. AUXILIARY CIRCUIT RELIEF
The auxiliary circuit for the 00 MODEL C50SS is used to operate the agitator function. In
this circuit, the relief valve set pressure and the system operating pressure is the same. To
check and make an adjustment the following is offered:
Agitator Pressure – Set @ 1500 PSI (105 Bar)
To check or set this pressure, it will be necessary to install a test pressure gauge in the
system.
•
Turn off pump and engine.
•
Slowly loosen hose fitting at hydraulic motor and then disconnect hose. Plug or cap end
of hose securely against pressure.
•
Install in the motor a 3000-PSI pressure gauge directly or attach the gauge to a test
hose and install other end in motor.
•
Start engine and adjust THROTTLE to maximum RPM .
•
Put a 2 x 4 wood piece to lock-up remixer auger.
•
At control, actuate the directional control valve lever to either FWD or REV which would
be the direction that still has pressure hose connected. (Not gauge side)
•
Monitor pressure gauge. Gauge should read 1500 PSI.
•
If gauge reads higher or lower, then re-adjust relief valve as follows:
•
The relief valve is located in the directional control valve.
•
Loosen locknut on valve cartridge. Turn set screw IN to increase pressure and OUT
to decrease pressure.
•
When correct pressure is reached, tighten locknut.
•
Shutdown engine.
•
Disconnect pressure gauge and reinstall hose onto motor.
REVISION: