TM 5-1730-245-14
2.8 OPERATION IN DUAL MODE .
2.8.1 Initial Adjustments and Checks .
Refer to figure 2-2. Connect the hoses from the units to be supplied to the hydraulic power supply. Use
PRESSURE PORT 8 GPM CIRCUIT NO. 1 (8) with RETURN PORT 8 GPM CIRCUIT NO 1 (1) for one unit
and PRESSURE PORT 8 GPM CIRCUIT NO. 2 (6) with RETURN PORT CIRCUIT NO 2 (3) for the other
driven unit.
2.8 2 Operating Procedures- Dual Mode.
Refer to figure 2-1. Both systems are now being bypassed through selector valve (4) To provide full system
pressure to circuit NO 1, move selector valve (5) to the "CIRCUIT NO. 1, 8 GPM" position. To provide full
system pressure to circuit NO. 2, move selector valve (8) to the "CIRCUIT NO. 2, 8 GPM" position. Either of
the two circuits may be used individually or simultaneously. Returning either selector valve (5) or (8) to the
"CIRCUIT NO. 3, 16 GPM" position will dump the pressure in its circuit through the 'BYPASS" position of
selector valve (4)
2.9 OPERATION IN COMBINED MODE - 16 GPM.
2.9.1 Initial Adjustments for 16 GPM Operation .
a. Refer to figure 2-2. Connect the hoses from the unit to be driven to the hydraulic power supply using
PRESSURE PORT 16 GPM CIRCUIT NO. 3 (7) and RETURN PORT 16 GPM CIRCUIT NO. 3 (2) quick
disconnect fittings.
2.9.2 Operation in 16 GPM Mode .
a. Refer to figure 2-1. Both systems are now being bypassed through selector valve (4). To provide full
system pressure to circuit NO. 3, move selector valve (4) to the PRESSURE position. The full output of both
circuits is now combined to give 16 GPM and is being directed to circuit NO 3. Moving selector valve (4) back
to the BYPASS position will dump the pressure in the system. Refer to decal located on right side of control
panel to verify correct valve position.
2.10 STOPPING THE HYDRAULIC POWER SUPPLY.
are in the NO. 3, 16 GPM position and selector valve (4) in the BYPASS position.
b. Reduce engine speed to idle by rotating the THROTTLE (12) counterclockwise to unlock and pushing
in.
c. Disconnect hoses from the hydraulic power supply and install side panels (8, fig. 1-2) and the front (5,
fig 1-2) panel to
protect the hydraulic power supply from the elements.
2-10