System Function Inspection - Upright TM12 Service Manual

S F
YSTEM UNCTION
Refer to Figure 1 and Figure 2 for the locations of various controls and indicators.
W A R N I N G
!
STAND CLEAR of the machine while performing the following checks.
Before operating the machine, survey the work area for surface hazards such as holes, drop-offs, bumps,
curbs, or debris.
LOOK up, down and around for overhead obstructions and electrical conductors.
Protect the control cable from possible damage while performing checks.
1. Move the machine, if necessary, to an unobstructed area to allow for full elevation.
2. Turn the Chassis and Platform Emergency Stop Switches ON by pulling the buttons out.
3. Check Level Sensor operation:
a. Open the door.
b. Push and hold the sensor off of level.
c. Turn and hold the Chassis Key Switch to
CHASSIS and push the Chassis Up/Down
Switch to the UP position.
• The alarm should sound, and the plat-
form should not lift.
d. Close and latch the door.
4. Turn and hold the Chassis Key Switch to
CHASSIS and push the Chassis Up/Down
Switch to the UP position and fully elevate the
platform.
5. Visually inspect the mast assembly for dam-
age or erratic operation. Check for missing or loose parts.
6. Verify that the depression mechanism supports have rotated into position under the machine.
7. Partially lower the platform by pushing the Chassis Up/Down Switch to DOWN, and check the operation
of the audible lowering alarm.
8. Check the Emergency Down Valve for proper operation (see Figure 4):
a. Open the valve by pulling the knob out.
b. Once the platform is fully lowered, close the valve by releasing the knob.
9. Push the Chassis Emergency Stop Switch in to the OFF position. All machine functions should be dis-
abled. Pull the Chassis Emergency Stop Switch out to resume.
10. Turn the Chassis Key Switch to DECK.
11. Check that the route is clear of persons, obstructions, holes and drop-offs, is level and capable of sup-
porting the wheel loads.
12. After mounting the platform, properly close and secure the entrance.
13. Position the Lift/Drive Switch to DRIVE.
14. Check for speed and directional control.
• While engaging the Interlock Switch, slowly position the Control Handle to FORWARD then
REVERSE. The farther you push or pull the Control Handle from center the faster the machine will
travel.
15. Push the Steering Switch RIGHT then LEFT to check for steering control.
16. Turn the Lift/Drive switch to LIFT to check platform lift controls.
• While engaging the Interlock Switch, move the Control Handle to UP to raise the platform.
• While engaging the Interlock Switch, move the Control Handle to DOWN to lower the platform. The
platform should descend and the audible lowering alarm should sound.
17. Push the Platform Emergency Stop Switch in to the OFF position. All machine functions should be dis-
abled. Pull the Platform Emergency Stop Switch out to resume.
107098-002 TM12 - Operator Manual
I
NSPECTION
!

System Function Inspection

Figure 3: Level Sensor Location
Level Sensor
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