JLG 400S Service And Maintenance Manual page 304

SECTION 4 - BOOM & PLATFORM
4. Using suitable lifting equipment, slide fly boom assem-
bly into the base section until the telescope cylinder
attach point aligns with holes in side of base section.
NOTE: The 400S fly boom section weighs approximately 660 lbs.
(300 kg). The 460SJ fly boom section weighs approximately
720 lbs. (325 kg).
5. Align bolt holes at aft end of base boom section with
telescope cylinder port block. Secure telescope cylinder
with hardware.
4-30
6. Using JLG threadlocker P/N 0100011 or equivalent,
install wear pads at front end of base boom. Using
shims, adjust the adjustable wear pads to zero clear-
ance. Adjust pads alternately side to side, so that fly
boom section is centered in base boom section.
MAF01920
7. Retract boom section fully. Using shims, adjust wear
pads at aft end of boom section to zero clearance.
Adjust pads alternately side to side, so that fly boom sec-
tion is centered in base boom section.
8. Disconnect auxiliary power source from telescope cylin-
der.
MAF01960
3121671