Skyjack SJ800-E series - Winching and Towing Procedure; To Release the Parking Brake Manually

April 2006
SKYJACK, Page 34
Section 2 - Operation Winching and Towing Procedure
SJ800 - E Series
Battery Powered
2.7 Winching and Towing Procedure
This section provides the operator the procedures with
towing and winching and on how to manually release
the parking brake.
Warning
Ensure platform is fully lowered before winching or
towing. Sudden motion could cause the aerial
platform to become unstable.
Death or serious injury could result.
Warning
In emergency situations where machine functions
are not available and lowering is impeded by an
obstacle, the utmost care must be taken to move
the machine far enough to clear the obstacle. In
such cases operation must be extremely smooth
with no sudden movements and must not exceed
a speed of 2”/sec.
Warning
When pushing, towing or winching,
do not exceed 2 mph (3.2 km/h).
Warning
Do not push, tow or winch vehicle on to
a slope, or brake the towing
vehicle rapidly. Do not pull the aerial platform
down an incline towards a winch.
2.7-1 To Release the Parking Brake Manually
Warning
Do not manually disengage the parking brakes
if the aerial platform is on a slope.
Figure 2-19. Parking Brake System
Parking Brakes - The brakes MUST be manually dis-
engaged for pushing, towing or winching.
1. Make sure that the aerial platform is on level ground.
Chock or block the wheels to keep the aerial platform
from rolling.
2. Disconnect the battery connector.
3. In the hydraulic cabinet, depress the black plunger
(item 1) on the brake valve until the plunger stays in.
4. Grasp the red hand pump plunger (item 2)and rapidly
depress (60 to 80 pumps) until firm resistance is felt.
The brake is now released.
5. Remove the wheel chocks or blocks then push, tow
or winch the aerial platform to the desired location.
6. Position the machine on a firm and level surface.
7. Chock or block the wheels to prevent the aerial
platform from rolling.
8. Re-engage the parking brake by either momentarily
activating the drive function or pulling out the black
brake valve plunger.
Note
The parking brake will reset automatically when
the drive function is selected.
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