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end of the cable through the bonnet clamp. Install the bonnet onto the control cable and turn it past the
threads also. Install the 1/4" hex jam nut and terminal eye on the core rod of the cable. Lock the terminal
eye to the core rod of the cable using the hex jam nut. Place the terminal eye in the slot of the valve spool;
insert the short pin through the valve spool and terminal eye and secure it in place with the `E' ring.
Thread the bonnet onto the end of the cable so it firmly touches the end of the valve. (Do not over- or
under -tighten the bonnet as either would move the valve spool out of its neutral position.) Remove two
cap screws from opposite corners of the seal retainer plate. Slide the bonnet clamp onto the bonnet and
secure it to the valve using the 1/4 x 1 1/4" cap screws, lock washers and flat washers. Lock the bonnet to
the cable using the 3/4" hex jam nut. See Fig. 5.
`E'-RING
CONTROL VALVE
HEX JAM NUT 1/4-28
HEX JAM NUT 3/4-16
CONTROL CABLE
INSTALL PUMP HOSES - 4 GPM
Study Fig. 6 very carefully before connecting the hoses. Install a 3/4" 90° street elbow and a 3/4" hose
barb in the suction port on the bottom of the reservoir. Install a 1 1/16 ORB x 3/4" hose barb in the suction
port of the pump and install a 3/4" ID suction hose. Secure the suction hose in place using hose clamps.
Install a 1 1/16 ORB x 1/2 NPT 90° swivel adapter in the `IN' port of the control valve and a 7/8 ORB x
1/2 NPT adapter in the pressure port of the pump. Connect a 72" long 1/2" ID hose between the pump and
the valve.
INSTALL PUMP HOSES - 6 GPM
Study Fig. 6 very carefully before connecting the hoses. Install a 3/4" 90° street elbow and a 3/4" hose
barb in the suction port on the bottom of the reservoir. Install a 1 1/16 ORBM x 3/4'' hose barb in the
suction port of the pump and install the suction hose. Secure the suction hose in place using hose clamps.
Install a 1 1/16 ORB x 1/2 NPT 90° swivel adapter in the `IN' port of the control valve and install a 1 1/16
ORBM x 1/2 adapter in the pressure port of the pump. Install a 72" long 1/2" ID hose from the pump to
the valve.
1643725H (404416)
PIN
TERMINAL EYE
BONNET
BONNET CLAMP
Fig. 5
FIG. 8
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2020-09-28
INSTALL CYLINDER HOSES - GEAR PUMP SYSTEMS
Install 90° swivel adapters in the work ports of the control valve and in the ports on the cylinder. Connect
the 36" long 1/2"ID hose with 7/8 JIC fittings, from the `B' port on the control valve to the base end port
on the cylinder. Connect the 60" long 1/2" ID hose with 7/8 JIC fittings, from the `A' port on the control
valve to the rod end port on the cylinder. This will raise the hoist when the control lever is pulled back and
lower it when pushed forward.
NOTE: The `A' port is the `power-down' port and has a pressure of only 500-1000 PSI at engine idle; the
`B' port has full system pressure.
Fig. 6
1643725H (404416)
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2020-09-28
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