System function inspection, Ystem, Unction – Snorkel LX41 Electric-sn4022-4390 User Manual

Page 7: Nspection

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System Function Inspection

067449-002 LX Electric Work Platform - Operator Manual

Page 5

S

YSTEM

F

UNCTION

I

NSPECTION

W A R N I N G

!

!

STAND CLEAR of the work platform while performing the following checks.
Before operating the machine, survey the work area for surface hazards such as holes, drop-offs, bumps and
debris.
Check in ALL directions, including above the work platform, for obstructions and electrical conductors.
Protect control console cable from possible damage while performing checks.

1. Move the machine, if necessary, to an unobstructed area to allow for full elevation.

2. Place chassis and platform Emergency Stop Switches in the ON position by pulling the buttons out.

3. Verify that the Platform/Chassis Switch is set to PLATFORM.

4. Turn the Platform Controls Key Switch clockwise to ON.

5. Position the Lift/Drive Switch to the DRIVE position. The drive enable light should be ON.

6. With the Speed Range Switch first in LOW SPEED and then in HIGH SPEED, depress the Interlock Lever and

slowly push the Control Handle to FORWARD then REVERSE positions to check for speed and directional
control. The farther you push or pull the Control Handle, the faster the machine will travel.

7. Depress the Interlock Lever and push the Steering Switch RIGHT then LEFT to check for steering control.

8. Optional Outrigger Equipped Machines:

a. With the Lift/Outrigger/Drive Switch in DRIVE, depress the Interlock Lever on the Control Handle and posi-

tion each Outrigger Switch to the EXTEND position.

• Outriggers should be disabled. If an outrigger extends during this test STOP. Remove the machine from

service until it is repaired.

b. Turn the Drive/Outrigger/Lift Switch to OUTRIGGER.

c. Depress the Interlock Lever on the Control Handle and position each Outrigger Switch to the EXTEND

position to deploy all four (4) outriggers.

• Check the outrigger indicator lights; they should be ON.

d. Depress the Interlock Lever on the Control Handle and position each Outrigger Switch to the RETRACT

position.

• Partially retract all four (4) outriggers. The outrigger indicator lights should FLASH.
• Fully retract all four (4) outriggers. The outrigger indicator lights should be OFF.

9. Open the control module covers to gain access to the chassis controls and Level Sensor.

10. Turn the Platform/Chassis Switch to CHASSIS.

11. Push the Raise Button to elevate platform while pushing the Level Sensor off of level. The platform should

only partially elevate and the tilt alarm should sound. If the platform continues to elevate and/or there is no
alarm, STOP and remove the machine from service until it is repaired.

12. Release the Level Sensor and fully elevate the platform.

13. Visually inspect the elevating assembly, lift cylinder, cables and hoses for damage or erratic operation. Check

for missing or loose parts.

14. Lower the platform partially by pushing in on the Lower Button, and check operation of the audible lowering

alarm.

15. Open the Chassis Emergency Lowering Valve to check for proper operation (refer to “Emergency Lowering”

on page 8). Once the platform is fully lowered, close the valve by releasing the knob.

16. Turn the Platform/Chassis Switch to PLATFORM.

17. Close and secure the module covers.

18. Enter the platform making sure the entry-way is secured.

19. Position the Lift/Drive Switch to LIFT.

20. Depress the Interlock Lever and slowly push the Control Handle to UP to raise the platform; fully actuate the

Control Handle to check proportional lift speed. Slowly pull the Control Handle to the DOWN position to lower
the platform. Check that the lowering alarm sounds.

21. Optional Outrigger Equipped Machines:

a. With the Lift/Outrigger/Drive Switch in LIFT, depress the Interlock Lever on the Control Handle and position

any Outrigger Switch to the EXTEND position.

• Outriggers should be disabled. If an outrigger extends during this test, STOP. Lower the platform and

remove the machine from service until it is repaired.

22. Turn the controller Key Switch to OFF, push the Emergency Stop Button, and dismount the platform.

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