Snorkel TL34-sn00001+ User Manual

Page 16

PRE-START CHECKS

With the top and bottom booms raised approximately 500mm each, the

unit switched off and the two Emergency Lower valves under the control

cabinet open, check:

The emergency lower valves located on the lift cylinders lower the boom

when pulled in a slow and controlled manner and that the boom movement

is stopped on releasing the valve

To Reset the hydraulic system after checks;

Fully extend the Outriggers while still maintaining Level. (check the bubble)
Using the ground controls, fully extend both Top and Bottom Booms.

All rams must be fully extended at the same time before returning them to
their transit position.

If the Emergency Lower is used during normal operation, DO NOT
use the machine, Contact your local UpRight representative.

Remember to close the two ball valves after this check

Functional Checks.

a. Move the machine, if necessary, to an unobstructed area to allow for

elevation.

b. Pull both Emergency stop Switches to the on position.

c. Refer to ‘setting up’ and deploy the outriggers.

d. From the Ground Controls test each machine function, lift and lower

both Booms.

e. With outriggers deployed, under load and top or bottom boom raised

approximately 50mm, it must NOT be possible to operate the outrigger

controls for hydraulic outrigger options.

i. Emergency stop switches must operate correctly. Check that each stops the

machine’s controls and that restarting is prevented until all stop switches

are unlatched. See Fig 3

g. From the cage controls test each machine function, lift and lower both Booms

and slew clockwise and counterclockwise.

h. Return the Booms to the stowed position.