Safety Lockout Tests; Hopper Door Proximity Switch; Arms Partly Raised Proximity Switch In Packing Mode - Wittke Pendulum Operator's Manual

Safety Lockout Tests

The safety lockout tests are part of your daily inspection. Successful completion of these tests ensures
that your unit is safe to operate. If any of these tests fail, do not operate your unit until the appropriate
adjustment or service has been completed.
Your front loader unit may be equipped with other safety lockout options not mentioned herein.
I :
MPORTANT
Consult your supervisor and/or maintenance department if you have questions or you are in doubt.

Hopper Door Proximity Switch

Successful completion of this test ensures that the front loader Hopper Door proximity switch is
working properly. If the hopper door is open, all hydraulic functions should become inoperative.
Warning!
Injury or death may occur if you attempt to enter the body while the pendulum packer or
arms are working.
For this test, proceed as follows:
Open the hopper door.
1.
Ensure that the warning message "Pump: Hopper Door Not Closed" appears on the multiplex
2.
display monitor (see Figure 3-2) and that both Pump button and Hopper Door Open indicator
light on the control panel are flashing red.
Verify that all hydraulic functions have been rendered inoperative by activating one of the control
3.
buttons, such as the Tailgate Up button on the control panel.
If the hydraulic system is still operative, the Hopper Door proximity switch may need to be
4.
adjusted or replaced. Refer to the Limit and Proximity Switches section in the Maintenance
Manual.

Arms Partly Raised Proximity Switch in Packing Mode

Successful completion of this test ensures that the arms will not raise above canopy if the pendulum
packer is not in its "home" position.
For this test, proceed as follows:
Fully lower the arms.
1.
Press the Pack button on the control panel.
2.
Stop the pendulum packer before it reaches its down position by pressing the Stop button.
3.
Raise the arms.
4.
They should stop above canopy.
If the arms do not stop above canopy, the Arms Partly Raised proximity switch (located on the
5.
right side of the arm tube) may need to be adjusted or replaced. Refer to the Limit and Proximity
Switches section in the Maintenance Manual.
Safety 33