Snorkel TL37, Operator'S Manual

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TL37J – 511116-000-EN-A 37
The aerial platform may be lowered using the emergency
lowering slew, lowering valves or hand pump.
Danger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components. Make sure all person -
nel stand clear while lowering the platform with the
emergency lowering system.
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury could result from such accidents. Fully close
the emergency lowering valve before operating the
aerial platform.
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury can result from such accidents. Immediately
push the emergency stop button inward to disable the
control system before using the emergency lowering
system in the event of an emergency.
Use the following procedure to operate the emergency
lowering system.
1. Immediately push the emergency stop button in-
ward to disable the control system in the event of
an emergency.
2. Locate the emergency lowering control.
3. Make sure there is nothing in the way to obstruct
the platform when it lowers.
4. Stand clear of the boom structure.
Emergency Slew
The emergency lowering slew may be used to lower
the platform if there is a malfunction in the hydraulic or
electrical system.
In the event of a failure, the machine can be manu-
ally slewed by moving the slew platform clockwise or
anticlockwise by inserting the slew lever and rotating
gearbox.
The slew lever for the aerial platform is located on the
side of the chassis as shown in Figure 11.1 below.
Chapter 11 – Emergency Operation
Slew Lever
insert
Slew
Lever
Figure 11.1 – Slew Lever Location and Insert
Emergency Lowering Valves
In the event of a power failure, the emergency lower
valve on the ram can be used to lower the booms.
This process involves assistance from the ground.
• Operate the lower ram valve first because it is clos -
er to the ground
• Press on the lowering valve button to initiate lower-
ing and faciliate access to the top ram valve.
Note
Each emergency ram valve will automatically close
when the button is released.
Figure 11.2 – Emergency Valve Location