Genie S-80 Service Manual page 119

February 2017
3 Support and secure both ends of the boom lift
cylinder to a second overhead crane or similar
lifting device.
4 Remove the pin retaining fastener from the
boom lift cylinder rod-end pivot pin. Use a soft
metal drift to remove the pin.
Crushing hazard. The boom will
fall if not properly supported
when the primary boom rod-end
pivot pin is removed.
5 Using auxiliary power, activate the boom down
function so the cylinder will retract. Retract the
cylinder just enough until the rod end of the
cylinder will clear the mounting bracket on the
boom. Turn the machine off.
6 Tag, disconnect and plug the boom lift cylinder
hydraulic hoses. Cap the fittings on the
cylinder.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
7 Remove the pin retaining fasteners from the
boom lift cylinder barrel-end pivot pins. Do not
remove the pins.
Part No. 1259369GT
8 Use a slide hammer to remove the barrel-end
pivot pins.
9 Move the boom lift cylinder towards the
counterweight end of the machine. Rotate the
boom lift cylinder until the barrel-end pivot pin
bores will clear the boom linkage.
10 Carefully remove the boom lift cylinder from
the machine.
S-80 • S-85 • S-80X
Service Manual
Boom Components
Crushing hazard. The lift cylinder
could become unbalanced and
fall if not properly supported and
secured to the lifting device.
Crushing hazard. The lift cylinder
could become unbalanced and
fall if not properly supported and
secured to the lifting device.
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