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Installation (Hydraulic–Powered Pumps)
CAUTION
The Hydraulic Power Supply must be kept clean at
all times to avoid damage to the motor and hydraulic
power supply.
1.
Blow out hydraulic lines with air and flush
thoroughly before connection to the
motor.
2.
Plug hydraulic inlets, outlets, and line ends
when disconnecting them for any reason.
Always plug the hydraulic inlets, outlets and lines when
disconnecting them for any reason to avoid introducing
dirt and other contaminants into the system.
Be sure that your hydraulic power supply is equipped
with a suction filter to the hydraulic pump and a system
return line filter of 10 micron size. Carefully follow the
manufacturer's recommendations on reservoir and filter
cleaning and periodic changes of hydraulic fluid.in
308351
NOTE: Hydraulic fluid is exhausted from differential hy-
draulic motors only on the upstroke of the operating cy-
cle. The oil return line must have at least twice the flow
capacity as the oil supply line. Otherwise, back pressure
on the hydraulic motor piston will slow down the motor
and the fluid displacement pump, resulting in a loss of
pump performance.
On the hydraulic oil supply line (P), install a shutoff valve
(G) to isolate the system for servicing; a fluid pressure
gauge (H) to monitor hydraulic oil pressure to the motor
and avoid overpressurizing the motor or displacement
pump; a pressure- and temperature-compensated flow
control valve (J) to prevent the motor from running too
fast; a pressure reducing valve (K) with a drain line (L)
running directly into the hydraulic return line (Q); and an
accumulator (N) to reduce the hammering effect caused
by the motor reversing direction.
On the hydraulic return line (Q), install a shutoff valve (M)
for isolating the motor for servicing.
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