Rice Lake TradeRoute HL Series - Installation and Service Manual (Legal-for-Trade) - Manual (Page 18)

14 Trade Route Installation Manual
2.5.3 Valve to Pump
The hydraulic pump on the truck can be plumbed to the control valve. Plumb pressure from the pump to the
pressure port on the valve, and plumb the tank port of the pump to the tank port on the valve.
WARNING
Control valves that contain a pressure relief valve require that the pump is protected from over
pressurization. This pressure setting may require adjustment depending on the application (consult
factory).
2.5.4 Air Removal (Bleed-off) Procedure
Note
Before raising the scale, ensure shipping bolts are removed.
During the bleed-off procedure, which removes air from the hydraulic system, some oil will be lost.
Important Do not allow the hydraulic pump to run dry. Serious damage and failure of the hydraulic pump can occur.
1. Plumb the valve to a hydraulic power source and hydraulic reservoir. This can be the hydraulic source on
the truck or a portable power pack.
2. With the cylinders down, loosen the top fitting of one of the cylinders. Place a pail or can under the fitting
to catch oil.
3. Raise and lower the scale. Continue raising and lowering until the oil coming out of the top fitting is clear
(not bubbly or creamy).
4. Tighten the top fitting.
5. Repeat steps 2 through 4 for all other cylinders.
6. Repeat steps 2 through 4 for the bottom fittings of all cylinders.
2.6 Mounting the Small Junction Box (JB4SS)
The junction box should be mounted in a location that is convenient for servicing and away from standing water.
Try to mount the enclosure in a location so that the load cell cables need not be cut, nor length added. Load cell
output is temperature compensated for the supplied cable length. Altering that length can change the cell’s signal
output.
Depending on the mounting surface, the JB4SS enclosure can be attached using two pan-head screws, bolts, or
other suitable fasteners. Figure 2-12., shows the dimensions for mounting the enclosure.
4.00"
(102 mm)
5.75" (146 mm)
1.60"
(40.6 mm)
6.55" (166 mm)
Cord Grip Homerun
Cable
Breather
Vent
Hole Dia.
0.234"
(6 mm)
Figure 2-13. JB4SS Enclosure Dimensions