Haulotte Group xlb-4725a, Operator'S Maintenance Manual, Page: 71 / 118

HAULOTTE GROUP 5 CYLINDER REPLACEMENT
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PIVOT
PIN
CYLINDER
ROD END
CYLINDER
BASE END
MASTER
CYLINDER
PIVOT
PIN
PIN
RETAINER
5 CYLINDER REPLACEMENT
If repair or replacement of an aerial work platform or outrigger hydraulic cylinder(s) or its component
parts becomes necessary, observe the following procedures in accordance with the safety
precautions established in the “Safety” section of this manual.
Removal of hydraulic cylinders from the aerial work platform may require the use of specialized tools
and lifting equipment.
NEVER attempt to operate overhead hoists or cranes or related equipment
without proper training, authorization and supervision. Perform all maintenance procedures only in
an area that is well-lit and well-ventilated. Haulotte Group is not responsible for personal injury or
property damage resulting from the improper use of equipment or failure to follow all procedures and
related safety precautions.
Direct all questions regarding cylinder removal and replacement to Haulotte Group Customer Service
Department: at 1-800-537-0540 or visit Haulotte Group online at
www.haulotte-usa.com .
.
MASTER / SLAVE CYLINDER REPLACEMENT
Use the following procedure to remove and replace faulty cylinders.
Master Cylinder
Refer to Figure 5–1 for the location of this cylinder.

With the boom in the “stowed” position, raise the
upper boom until there is adequate exposure of
the pin retainer and pivot pin.

Verify that the upper boom is supported by lifting
straps and an overhead hoist or equivalent.

Unbolt and remove the pin retainer at the rod end
of the cylinder.

Remove the pivot pin using a hammer and a
brass or hardwood drift.

Tag and number all hydraulic hoses that attach
to the cylinder valve block. Use a marker to
label the valve block ports with the appropriate
hose numbers.
Figure 5-1. Location of Master Cylinder
WARNING
Repair and removal of the hydraulic cylinder requires the use of
lifting straps and an overhead crane or lifting gear to support
the aerial work platform and hydraulic cylinders. Personnel
should be thoroughly trained in the operation of these devices
before attempting installation or removal. Hydraulic cylinders
are heavy and may have hydraulic oil on their surface. Failure
to use proper equipment or to securely support aerial work
platform and cylinders could result in death or serious injury
and damage to aerial work platform.