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WELD REAR HINGE AND SUB-
Fig. 2
SUBFRAME
FRAME
Make sure the body/hoist assembly or hoist/
subframe assembly is correctly located, cen-
tered on and square with the truck frame. Se-
curely weld the mounting plates to the sub-
frame. Add a plate (not supplied) to the end
of the truck frame rail. (See Fig. 3.) Securely
WELD ALL
weld the plates to the end of the truck frame
AROUND TO
SUBFRAME
rails and to the back end of the subframe. Do
this on both sides.
TRUCK FRAME
MOUNTING PLATE
DO NOT WELD TO TRUCK FRAME
SUPPORT FUEL FILL TUBE
If necessary, construct supports for the fuel tank fill tubes. Construct the support so that it does not inter-
fere with any portion of the body or hoist operation.
HYDRAULIC PUMPS
Crysteel offers two different hydraulic systems for use with the Model LB520 Hoist. Mounting instruc-
tions can be found on the pages shown:
PTO driven Gear Pump with Remote Reservoir/Valve
Electric Pumps - General
Electric Pumps - Double-Acting
MOUNT GEAR PUMP
The gear pump has an SAE `A' mounting configuration, an 11-tooth splined shaft and a two-bolt mounting
flange, and is assembled for counterclockwise rotation. Note: This pump will mount directly to Chelsea's
output type `AD' or Muncie's output type `T'. Crysteel Manufacturing recommends a PTO ratio of 100-
120%. This assures a minimum pump operating speed of 600 RPM. CHECK THE ROTATION OF THE
PTO! If it is opposite of the engine, then the pump can be used as it is. If the PTO rotation is the same as
the engine, then the pump will need to be reversed. (See instructions included with the pump.) Bolt the
gear pump to the PTO output flange using 3/8 x 1" cap screws and lock washers.
The optional 6 GPM gear pump has an SAE `B' mounting configuration, a 13 tooth splined shaft and a
four-bolt mounting flange, and is assembled for rotation in either direction. NOTE: This pump will mount
directly to Chelsea's output type `XK' or Muncie's output type `D'. Crysteel Manufacturing recommends
a PTO ratio of 100-120%. This assures a minimum pump operating speed of 600 RPM. Bolt the gear pump
to the PTO output flange using 1/2 x 1 1/4 cap screws and lock washers.
1643725H (404416)
SUBFRAME
PLATE
(not supplied)
TRUCK FRAME
Page 8
Page 12
Page 13
8
2020-09-28
MOUNT RESERVOIR/VALVE ASSEMBLY
The reservoir/valve assembly should be mounted on the same side of the truck as the pump and as high as
possible for reliable pump performance. The slotted end of the valve spool should be towards the front of
the truck so the valve control cable can be easily connected. The mounting brackets for the reservoir/valve
assembly can be used to mount the reservoir/valve assembly outside the truck frame or inside between
the truck frame rail and the driveshaft. Determine where to mount the reservoir/valve assembly and bolt
the mounting brackets to the reservoir/valve assembly using 3/8 x 1 cap screws, flat washers and hex lock
nuts. Locate the reservoir/valve assembly and clamp the mounting brackets to the truck frame. See Fig.
4. If inside the truck frame, make sure there is enough clearance for the drive line and hot exhaust pipes.
THE ENGINE EXHAUST MUST NEVER BLOW DIRECTLY ONTO THE RESERVOIR/VALVE AS-
SEMBLY. Insert the spacers in the mounting brackets and mark the truck frame for drilling using the pump
mounting brackets as guides
Fig. 3
CAUTION: BE CAREFUL OF BRAKELINES, WIRING, ETC. INSIDE THE
TRUCK FRAME WHEN DRILLING THE TRUCK FRAME.
INSTALL REMOTE VALVE CONTROL
Temporarily assemble the valve control head to the pedestal using 5/16 x 2 1/4" machine screws and hex
nuts. Place this assembly on the floor of the cab. Make sure there is enough room to operate the valve con-
trol and the gear shift lever and to adjust the seat. Check below the floor for obstructions and cable routing.
Relocate the valve control if necessary. Mark the floor using the pedestal as a template and drill 1/4" holes
for the mounting screws and a 3/4" hole for the control cable. Assemble the control cable to the valve
control head and assemble the valve control head and cover to the pedestal using 5/16 x 2 1/4" cap screws
and hex lock nuts. Insert the control cable through the hole in the floor and mount the pedestal to the floor
using 5/16 x 1/2 machine screws and hex lock nuts. Make sure the valve control lever is in its center detent
position. Keep the control cable away from hot exhaust pipes and rotating drive shafts. The control cable
should not have any sharp bends or kinks in it (these will make the control harder to operate).
Install the 3/4" hex jam nut onto the valve end of the control cable and turn it past the threads. Insert the
1643725H (404416)
MOUNTING
ANGLES
TRUCK
FRAME
FRONT OF
TRUCK
9
RESERVOIR/VALVE
FIG. 4
2020-09-28
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