Snorkel TL49-sn1001+ - Manual (Page 3)

3
13. Using the chassis control Toggle Switches, fully
ELEVATE Booms 1 & 2 and EXTEND the
Telescopic Boom.
14. Visually inspect the elevating assembly and cage
mounting/structure, lift cylinders, cables and hoses
for leaks, damage or erratic operation. Check for
missing or loose parts such as nuts, bolts and
circlips.
15. Test the Emergency Lowering Valves on the Upper
and Lower Lift Cylinder are operating correctly as
detailed on Page 6. PUSH/TURN the Emergency
Stop Button to identify that functions will indeed
cease when depressed.
16. Check the SLEW left and right function.
17. Return the machine to an elevated position just
above the Boom Rest 1 ft (300 mm). To confirm
that the Outriggers and Outrigger Limit Switches
will operate correctly while the machine is elevated,
it is then vital that each Outrigger Limit Switch is
individually tested.
Retract the Rear Left Outrigger using the Toggle
Switches on the Outrigger Control Box (will simulate
an Outrigger out of deployment). At this point the
TL49 should have the following characteristics;
the alarm will sound and the DOWN, RETRACT &
SLEW Boom functions only will be operable from the
Lower Controls.
The above test should be repeated for all Outriggers.
18. Lower each boom until the Elevating Assembly is
fully stowed. Repeat all the above tests from
the Platform Controls.
19. While testing the Platform Controls it is also
necessary to test that the Emergency Override
functions will work. While elevated in the Platform
request a colleague to activate the Tilt Sensor. The
alarm should sound and normal controls should
cease. By turning the Platform Selector Switch to
the Emergency Override position the DOWN
functions, RETRACT functions and SLEW
functions only will be activated.
The Emergency Override functions should also give
the Down & Slew functions only when an
Outrigger Limit Switch is deactivated. Carry out
the tests as outlined in Item No.17 in this section.
The System Function Inspection is then complete.
PRE-TRANSPORT INSPECTION
20. Lower the jockey wheel until it is in contact with the
surface.
21. Retract the Outriggers fully. To do this the operator
must use the Toggle Switches on the Outrigger
Control Box to raise each Outrigger individually in
small increments until the road wheels are taking the
Work Platform’s weight. Raise the Outriggers until
they are locked in the required vertical position. The
Outriggers are now correctly stowed.
22. Return the Keyswitch to the OFF (centre) position.
Check tyre pressures and thread depth. These
procedures are further detailed on Page 8.
If there are any concerns about the safe use or
operation of the TL49 following this
Pre-Operation Inspection DO NOT USE THE
TL49 WORK PLATFORM. Contact your
supplier or UpRight’s Product Support
Department.
WARNING
Figure 1: Deploying the Outriggers
Outrigger Raised
Outrigger Lowered
To activate the Outrigger Control Box the Keyswitch
must be turned to the CHASSIS position. For each
Outrigger there will be a toggle switch. Each toggle
switch will have its corresponding graphic.
To deploy (lower) an Outrigger it’s toggle switch
should be held down. To retract (raise) an
Outrigger it’s toggle switch should be held up.