SKYJACK, Page 31
Section 2 - Operation
August 2007
SJM & SJII Series
2-26. Winching And Towing Procedures
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
When pushing, towing or winching,
Do not exceed 2 mph (3.2 km/h).
Warning
Do not push, tow or winch either vehicle on to
a slope, or brake the towing
vehicle rapidly. Do not pull the aerial platform
down an incline towards a winch.
Warning
Do not manually disengage the parking brakes if the
aerial platform is on a slope.
Make sure that the aerial platform is on level ground.
Figure 2-14. Free-Wheeling Valves
SJM (left)/SJll (right)
1. Chock or block the wheels to keep aerial platform
from rolling.
2. Free-Wheeling Valve - Turning the valve knob
(counterclockwise) to a fully opened position
allows fluid to flow through the wheel motors, thus
providing “free-wheeling”.
3. Parking Brake - The brake pins MUST be
manually disengaged for pushing, towing or
winching.
Figure 2-15. Parking Brake
• For Left-Hand Brake: Using a 3/4" wrench, rotate
the lock-out block on the brake pin 90°
clockwise. The brake pin should be clear of
the brake disc.
• For Right-Hand Brake: Using a 3/4" wrench, rotate
the lock-out block on the brake pin 90°
counterclockwise. The brake pin should be
clear of the brake disc.
Note
The parking brakes will reset automatically when the
work platform is driven.
2-27. Preparation After Winching Or Towing
• Position machine on a firm, level surface.
• Chock or block the wheels to keep aerial platform
from rolling.
• Engage the parking brake by momentarily
activating the drive function.
• Close free-wheeling valve.
Note
The SJM & SJll Series aerial platforms are now ready
for use by an authorized, qualified operator who has
read and completely understands ALL of Section 2,
OPERATION in this manual.
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