Standard); Lowering; Compressing The Gas Springs - Upright ULII-25 Service & Parts Manual

Section
3.5
3.5 Tilt Back (Cont.)
UL-48 (STANDARD)
The UL48 is equipped with a castered rear Tilt Back
assembly. When the unit is tilted back onto this support
frame, the overall height is reduced to allow the unit to
pass through a standard doorway.

Lowering

Tilt back operation should only be per-
formed by two people.
Before tilting the machine onto the Tilt
Back Frame, be sure: the retaining pin is
fully inserted with the hair - pin retainer
installed and the Gas Spring assembly is
fully extended.
DO NOT drop Tilt Back Frame.
Keep out from under Tilt Back frame and
machine when tilting.
1. Be sure area is clear of personnel and obstructions.
2. DC models – remove battery box and disconnect
cable.
3. Remove one outrigger from the storage pocket and
install in the lifting pocket at the front of the ma-
chine. Slide outrigger in until it locks in place.
4. While another person supports the Tilt Back Frame,
remove the retaining pin from the gas spring assem-
bly by unfastening the hair - pin retainer and pulling
the pin out.
Hair Pin Retainer
Figure 3-14: Pinning the Tilt Back Frame in Place
3-10
Operation
Retaining Pin
Figure 3-15: Compressing the Gas Springs
5. Lower the Tilt Back Frame until the top of the gas
spring assembly reaches the upper attachment point
and insert the retaining pin through the top of the gas
spring assembly. Lock the retaining pin securely with
the hair - pin retainer (fig. 3-14).
6. Lower the unit gently onto the Tilt Back Frame by
lifting up on the outrigger. DO NOT allow the
machine to fall onto the Tilt Back Frame.
7. Set the caster brakes by stepping on the caster brake
lever. Check to insure that the Tilt Back Frame does
not roll.
8. While another person lifts up on the outrigger, pull
down first on the lower handle bars, then on the
upper handle bars to lower the unit until the gas
spring assembly is compressed (fig. 3-15). DO NOT
stand under the machine while performing this
operation.
9. While another person lifts up slightly on the upper
handle bars, align the free end of the strut with the
locking tabs on the Tilt Back frame and lock the strut
into place by pulling on the cable connecting the
two locking pins (fig. 3-16). Check the strut to insure
that both pins are securely locked in place.
Strut
Figure 3-16: Securing the Strut
UL-25/32/40/48 Portable Personnel Lifts
Upper Handlebars
Lower Handlebars
Locking Tabs