Gorman-Rupp Pumps HSV6B31-HYD All serial numbers - Manual (Page 11)

HS AND HSV SERIES OM−03984
OPERATION PAGE C − 1
OPERATION − SECTION C
Review all SAFETY information in Section A.
The Gorman-Rupp Company manufactures a
hydraulic power unit specifically designed to
power the hydraulic pump. A customer-ins-
talled power source may be used to operate the
pump; however, since operating procedures
vary with the power source used, the following
instructions apply to operation with a Gorman-
Rupp power unit. Consult the factory for specif-
ic information using a customer-installed power
source.
Refer to the INSTALLATION section of this man-
ual before startup.
Follow the instructions on all tags, labels and
decals attached to the power source.
Do not operate an internal combustion
engine in an explosive atmosphere.
When operating internal combustion
engines in an enclosed area, make cer-
tain that exhaust fumes are piped to the
outside. These fumes contain carbon
monoxide, a deadly gas that is color-
less, tasteless, and odorless.
Never tamper with the governor to gain
more power. The governor establishes
safe operating limits that should not be
exceeded. Consult the factory or the
power unit specification data sheet for
the maximum continuous operating
speed.
If using a customer-installed power
source, do not use closed-center
valves. Return flow from the hydraulic
motor must be allowed to return directly
to the oil reservoir to enable the pump
impeller to gradually slow to a stop. Clo-
sed-center valves will block this flow,
causing damage to the hydraulic motor
and/or the pump seal.
STARTING
1. Position the submersible pump away from per-
sonnel for a dry test on land.
2. Refer to the engine operation manual, start the
engine and allow it to warm up for one or two
minutes. (On units equipped with a 45 gallon
[170 liter] hydraulic tank, adjust engine speed
to 1500 RPM after warm up.)
NOTE
If the engine is equipped with a shutdown system,
hold the reset button in until the engine starts and
the engine oil pressure is maintained.
3. Turn the hydraulic pressure control valve clock-
wise until it stops. This energizes the hydraulic
system.
Do not use the hydraulic pressure control
valve to regulate hydraulic pressure; this
valve is on/off only.
4. Check the hydraulic submersible pump to be
sure it is operating.
5. Check all connections and the pump hydraulic
motor for any oil leaks, and correct as required.
Make sure hydraulic hose connections
are fully tightened. Hydraulic hoses are
equipped with check valves in each end to
prevent oil from escaping when
disconnected. Hose connections must be
tight to fully open these check valves.