152
Troubleshooting
Pump
The pump is operated by a control switch located on the control panel. When it is engaged, a red
indicator lights up.
Three conditions must be met for the pump to engage and for the red indicator to light up:
Air pressure must be at approximately 70
psi
Engine speed must be lower than 900
rpm
Emergency S
TOP
button (red) pulled out
Air pressure condition is verified by a pressure switch, and engine speed, by the transmission control
module (TCM).
If the pump does not engage when the pump switch is turned on, it may be related to a voltage supply
problem in the pump circuitry.
There is a pump test that can help resolve pump-related problems. For more information on that or
for advanced troubleshooting, please call Labrie
Plus
.
Prior to conducting a pump test, ensure that all these conditions are met:
Parking brake applied
Engine is running (idle speed)
Transmission in “Neutral”
Emergency S
TOP
button(s) pulled out
Pump (
PTO
) switch ON
N
OTE
:
Neither the engine throttle nor the transmission not being in Neutral will affect pump
operation once the pump is engaged.
Pump Cavitation
Cavitation is defined as the formation of air pockets in a moving fluid. Air in the hydraulic oil causes
excessive wear and noise. Make sure to prime the pump properly after its replacement or after
flushing the hydraulic system (refer to “Priming a New Pump” on page 98). When the pump is
properly primed, cavitation disappears after a short time because air is returning to the hydraulic tank.
If the pump is still generating unusual noise after performing the priming procedure, you will have to
bleed the hydraulic system.
To do so:
1.
Apply all safety measures to ensure safety around the vehicle at all times.
2.
Connect a 0–4000
psi gauge to the main valve to ensure that no pressure has built up in the
system.
3.
Apply the parking brake and start the engine.
4.
Engage the hydraulic pump (
PTO
switch “ON”).
5.
Place a pan or a bucket under the plug located on the main control valve output section and
slowly loosen the plug.
Summary of Contents for Automizer Versa Hand
Page 1: ...AUTOMIZER VERSA HANDTM MAINTENANCE MANUAL...
Page 2: ......
Page 3: ...AUTOMIZER VERSA HAND MAINTENANCE MANUAL...
Page 26: ...18 Safety...
Page 89: ...Lubrication 81 Figure 4 11 Lubrication chart Automizer...
Page 90: ...82 Lubrication Figure 4 12 Lubrication chart Versa Hand arm...
Page 94: ...86 Lubrication Figure 4 18 Cylinder retaining ring Cylinder retaining ring...
Page 95: ...Lubrication 87 Packer Lubrication Points...
Page 96: ...88 Lubrication Hopper Door Hopper door latch Hopper door hinges...
Page 105: ...Hydraulic System 97...
Page 127: ...Hydraulic System 119 Figure 5 29 Detecting cylinder internal leaks 1 2 3 4 5 A A A...
Page 128: ...120 Hydraulic System Main Hydraulic Schematic...
Page 129: ...Hydraulic System 121 Hydraulic Schematic 96 Gallon Gripper...
Page 130: ...122 Hydraulic System Hydraulic Schematic 300 Gallon Gripper...
Page 131: ...Hydraulic System 123...
Page 132: ...124 Hydraulic System...
Page 137: ...Electrical System 129 Electrical Schematics Console 1...
Page 138: ...130 Electrical System Console 2...
Page 139: ...Electrical System 131 Arm Control...
Page 140: ...132 Electrical System Chassis...
Page 141: ...Electrical System 133 Main Body...
Page 142: ...134 Electrical System Hopper...
Page 143: ...Electrical System 135 Arm...
Page 144: ...136 Electrical System...
Page 151: ...Pneumatic System 143 Pneumatic System Schematic...
Page 152: ...144 Pneumatic System...
Page 155: ...Troubleshooting 147 Figure 8 4 Ball end hex wrench metric and SAE...
Page 164: ...156 Troubleshooting Figure 8 9 Tailgate locking mechanism...
Page 166: ...158 Troubleshooting...
Page 189: ...Lifting Arm 181...