Snorkel S3246 CE - Manual (Page 47)

S2646/S3246 – 0410063EE 43
2. Turn the battery disconnect switch off.
3. Unlatch and swing out the hydraulic tray on the right
side of the chassis. Push and release the brake re-
lease hand pump several times to release the brakes.
The hand pump is located on the main control valve
(refer to Figure 11.2).
Figure 11.2 – Hydraulic Tray
4. Turn the free-wheeling valve counterclockwise to the
fully open position. The free-wheeling valve is located
on the drive valve at the rear of the chassis (refer to
Figure 11.3).
Figure 11.3 – Rear of Chassis
5. Do not exceed 3.2 km/h (2 mph) when towing.
A
Warning
The aerial platform is free to move when the brakes
and free-wheeling valve are disabled. Death or se-
rious injury could result. Close the free-wheeling
valve and reset the brakes before operating the
aerial platform.
6. Close the free-wheeling valve after moving the aerial
platform.
If the aerial platform cannot be operated due to a loss of
hydraulic power, such as motor or pump failure, the plat-
form lift cylinder(s) and drive wheels may be operated
manually. Refer to the Emergency Lowering or Towing
section for the appropriate procedure.
Emergency Lowering
Use the following procedure to lower the platform.
1. Retract the platform extension, if possible.
2. Locate the emergency lowering handle at the rear of
the aerial platform (refer to Figure 11.1).
Figure 11.1 – Rear of Chassis
3. Make sure there is nothing in the way to obstruct the
platform when it lowers.
A
Danger
Pinch points exist on the scissors structure. Death
or serious injury will result from becoming trapped
within the scissors structure. Make sure all person-
nel stand clear while lowering the platform with the
emergency lowering handle.
4. Pull the handle outward to lower the platform. Push
the handle all the way back in after lowering the plat-
form.
Towing
The aerial platform may be pushed or pulled after disen-
gaging the brakes. Use the following procedure to manu-
ally disengage the brakes.
A
Warning
The aerial platform is free to move when the brakes
are released. Death or serious injury could result.
Re-enable the brakes before operating the aerial
platform.
1. Chock the wheels to prevent uncontrolled motion of
the aerial platform.
Chapter 11 – Emergency Operation
Free-Wheeling Valve
Brake Release
Hand Pump
Auto Brake
Reset Override
Emergency Lowering Handle