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12 ► HP TWIN8 User Manual
COUPLERS (HOSE CONNECTIONS)
Facing the control panel, the top (2) male couplers are
the PRESSURE FLUID OUT ttings. The bottom (2)
female quick disconnect couplers are the RETURN
FLUID IN. Their are two independent circuits, one on
the left and one on the right, each controlled by the
adjacent lever.
CONTROLS (DUAL CIRCUIT)
When the throttle control lever is in the far left position,
it will produce 5 GPM to both circuits at the same time
and with the lever in the far right position will produce 8
GPM to both circuits. This allows two tools that can run
simultaneously at 5 or 8 GPM.
The ow control levers when turned “ON” (up position)
turns on ow to the tool or tools depending on if you
are using one or both circuits.
STARTUP
1. Before starting the engine check the engine oil and
hydraulic uid level.
2. Check to make sure the ow Control levers are in
the OFF position (Down), the power unit will not
start if the levers are in the “UP” position (ON).
3. Connect hoses and the tool as described on page
9.
4. It is not necessary to choke the engine, it is
equipped with a “Electronic Fuel Management
System” that does not have a manual choke.
5. Set the throttle control lever to the left (5-GPM)
setting. Once the unit starts and is warmed-up the
lever can be moved to the 8-GPM setting if desired.
6. Turn the Ignition Switch to the START position.
After the engine starts, release the switch.
7. Allow the engine to warm up.
8. Turn on the ow to the tool by lifting the “Flow
Control Levers” up into the on position, lift both
levers if running two circuits (two Tools).
SHUTDOWN
1. Ensure the ow control levers are in the OFF
position (Down).
2. Move the Ignition Switch to the OFF position.
Top Male Quick Disconnect
Couplers (Pressure Fluid Out)
Bottom Female Quick Disconnect
Couplers (Return Fluid In)
Flow Control Lever(s) In Off Position
Throttle Control Lever
COLD WEATHER STARTUP
1. Use the procedures described under “STARTUP”
and then follow the procedure below.
2. Hydraulic uids are thicker in cold weather.
Therefore, it is recommended that the engine
be run at low idle long enough to bring the uid
temperature up to a minimum of 50 °F/10 °C.
3. If the tools and tool hoses are cold, it is
recommended to allow hydraulic uid to circulate
through the tool hoses until warm before using the
tool.
NOTICE
If the engine runs out of gas or dies during operation
and the ignition switch is left in the ON or RUN
position, this could drain the battery. Make sure the
ignition switch is returned to the OFF position.
Starter Switch
OPERATION