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Hydraulic System 143
Adjusting Pressure on the Proportional Valve
A
UTOMIZER
™ F
ULL
E
JECT
vehicles use an extra valve stack to control the arm, the gripper and the
crusher panel (if equipped). This valve is of the proportional type, meaning that the amount of flow
coming out of it will be according to the position of the spool.
Levers are delivered with the vehicle to make the pressure adjustment.
I
MPORTANT
:
Before making any adjustments to the lifting arm proportional valve, the dump valve pressure (if
equipped) must have been properly set. For more information on adjusting dump valve pressure,
see Hydraulic Pressures on page 138.
Refer to Table 3 on page 150 to correctly adjust the pressure for each function of the lifting arm.
I
MPORTANT
:
Before performing the following procedure, make sure that all function levers and their adjustment
screws have been properly identified on the valve (see Figure 5
42).
N
OTE
:
A helper may be needed when adjusting arm pressure. Use all necessary safety precautions
around the vehicle at all times.
To adjust the proportional valve main relief pressure:
1.
Secure the arm working area using safety tape or barricades.
2.
Install the control lever on the arm extend/retract function of the proportional valve (see Figure
4).
3.
Move the lever back and forth to remove any residual hydraulic pressure in the system.
4.
Connect a 0–4000 psi gauge to the quick coupler located on the proportional valve.
Figure 5
-
35 Control lever and quick coupler
Warning!
Stay out of the path of the arm while manually moving the Right Hand™.
Failure to do so may result in severe injury, or even death.
Summary of Contents for AUTOMIZER FULL EJECT
Page 1: ...AUTOMIZERTM FULL EJECT MAINTENANCE MANUAL ...
Page 2: ......
Page 3: ...AUTOMIZERTM FULL EJECT MAINTENANCE MANUAL ...
Page 36: ...28 Safety ...
Page 112: ...104 Lubrication ...
Page 139: ...Hydraulic System 131 Figure 5 23 Strainer assembly Strainer ...
Page 144: ...136 Hydraulic System Figure 5 27 Detecting cylinder internal leaks 1 2 3 4 5 A A A ...
Page 160: ...152 Hydraulic System 0 1 2345 62789 ELECTRO HYDRAULIC VALVE HD RH ARM ...
Page 161: ...Hydraulic System 153 0 1 2345 62789 ELECTRO HYDRAULIC VALVE CRUSHER PANEL HD RH ARM ...
Page 164: ...156 Hydraulic System ...
Page 176: ...168 Electric System Cab Console Control Wiring ...
Page 177: ...Electric System 169 Control Box ...
Page 178: ...170 Electric System Chassis ...
Page 179: ...Electric System 171 Tailgate Lighting ...
Page 180: ...172 Electric System Left Body SideWiring ...
Page 181: ...Electric System 173 Right Body Side Wiring ...
Page 182: ...174 Electric System Camera s Switchpack s Layout Option s AUTO 10 SEC INHIBIT AUTO ...
Page 204: ...196 Troubleshooting ...
Page 205: ...Troubleshooting 197 ...
Page 206: ...198 Troubleshooting ...
Page 230: ...222 Multiplexing ...
Page 254: ...246 Lifting Arm Figure 10 27 Standard lifting arm ...
Page 255: ...Lifting Arm 247 ...
Page 256: ...248 Lifting Arm ...