JLG SSV10 Service Manual - Manual (Page 78)

SECTION 5 - MAST COMPONENTS
5-6 – JLG Lift – 3121187
free of any metal chips or debris which may stick to
lubricated chains)
NOTE: When sliding mast sections apart, be careful not to
scratch or score the anodized finish in the slide pad
channels.
8. Slide mast section-3 out the TOP of mast section-2
enough to allow removal of the sheave wheel
assembly.
9. Remove countersunk-flathead screws securing
chain sheave wheel assembly attach bars on both
side rails at TOP of mast section-3 and remove
sheave wheel assembly.
10. Carefully slide mast section-3 out BOTTOM of sec-
tion-2. Remove slide pads, shims and cable anchor
plate, if necessary.
MAST SECTION-2 - REMOVAL
NOTE: Since the lift cylinder rod is still attached to the
anchor block at the top of the section-2 mast assem-
bly, you will need to temporarily uncap the extend
and return hydraulic lines to allow mast section-2 to
be extended in the next step. Capture any hydraulic
fluid that may flow out of the lines and recap the lines
once section is extended.
11. Slide mast section-2 out TOP of mast section-1 far
enough to allow access to the chain assembly
anchor block/sheave wheel assembly.
12. On the underside of the mast assembly, remove the
snap ring securing the anchor pin running through
the small chain equalizer plate, the cylinder anchor
block and the cylinder rod.
13. Push or lightly tap the anchor pin up and remove.
Lay the small chain set aside.
14. Remove countersunk-flathead screws securing
chain anchor block/sheave wheel assembly attach
bars on both side rails at TOP of mast section-2 and
remove the anchor block/sheave wheel assembly.
NOTE: When sliding mast sections apart, be careful not to
scratch or score the anodized finish in the slide pad
channels.
15. Carefully slide mast section-2 out the TOP of sec-
tion-1. Remove slide pads and shims, if necessary.
MAST SECTION-1 - DISASSEMBLY
16. Remove the four (4) large screws (2 each side)
attaching the lift cylinder mounting block to mast
section-1. Slide the cylinder out of the mast section
and move to a suitable work surface.
17. At the top end of mast section-1, remove the pin
attaching the chain anchor block to the mast and
remove chain/anchor block assemblies from the
mast and lay aside.
18. Remove slide pads and shims from mast section-1,
if necessary.
Mast disassembly should now be complete.