Terex Genie S-80 HF Series, Service And Repair Manual

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Service and Repair Manual October 2019
Boom Components
50 S ® -80 XC ™ • S ® -85 XC ™ • S ® - 80 HF • S ® -85 HF Part No. 1280490GT
8 Locate the extend cable adjustment nuts on
the counterweight end of boom tube #1. Refer
to Illustration 1. Loosen the nylock nuts and
jam nuts on the cable tension equalizer
bracket. Do not remove the nuts.
9 Adjust the extend cable adjustment nut to
obtain 6 3/8 inches/16.2 cm to 6 1/2
inches/16.5 cm between the platform end of
boom tube #2 and boom tube #3. Refer to
illustration 2. There should be approximately
1/2 inch of exposed threads on the adjustment
bolts. Refer to Illustration 1.
Note: If the cables have been replaced, be sure the
adjustment nuts have been replaced. Do not re-use
the existing nuts.
10 Extend the boom until there is approximately 3
feet / 1 m of travel left. Do not fully extend the
boom.
Illustration 1
1 cable break limit switch
2 extend cable adjustment nut
3 extend cable pivot plate
11 Locate the retract cable adjustment nut on the
bottom of the number 1 boom tube at the
platform end of the boom.
12 Using a dial type torque wrench, torque the
retract cable adjustment nut to 32-36 ft lbs /
43-49 Nm using gentle and steady torque.
13 Retract and extend the boom approximately 3
feet / 1 m two times and stop during the
extension cycle. This will create slack in the
retract cables.
Note: Be sure to not fully extend the boom. Stop
when there is approximately 3 feet / 1 m of travel
left.
14 Repeat steps 12 and 13 two to three times.
15 Fully extend the boom then retract the boom
approximately 12 inches / 30 cm.
16 At the pivot end of the boom, visually inspect
the boom extend cables for even cable droop
or sag.
Note: If the boom extend cables are uneven,
tighten the boom extend cable adjustment nut at
the pivot end of the boom for the appropriate cable.
llustration 2
1 6.375 inches / 16.2 cm