JLG SSV10 Service Manual - Manual (Page 85)

SECTION 5 - MAST COMPONENTS
3121187 – JLG Lift – 5-13
15. Slide mast section-2 out of mast section-1 approxi-
mately one foot.
16. Assemble the chain sheave wheel assembly to the
chain assembly anchor block which will attach to the
cylinder rod and to mast section-2 using following
steps;
a. Insert sheave pin through anchor block assem-
bly.
b. Load one (1) narrow spacer tube onto the
sheave pin on each side of the anchor block.
c. Place sheave wheels (for wide #544 chain) on
sheave pin, one each side of anchor block.
d. On the outside of each sheave wheel, place a
large thrust washer.
e. Insert the key bar into the keyway on the end of
the sheave wheel pin.
f. Place a sheave pin support plate on each end of
the shaft.
g. Slide the whole anchor block/sheave wheel
assembly into top of mast section-2. Slide the
anchor block onto the top of the cylinder rod.
Check that the hole in the cylinder rod aligns the
the hole in the anchor block.
h. Align the threaded holes in the sheave pin sup-
port bars with the mounting holes on each side
of the top of mast section-2 mast and attach
using two (2) 3/8"-16UNC x 1/2" long socket
head-countersunk-flathead cap screws each
side. Coat threads with Loctite #171 on final
assembly.
17. Locate and assemble the narrow chains set (#444)
and to the small (triangular shape) chain equalizer
anchor plate using the pins, washers and cotter
keys.
18. Lay out the chain(#444)/anchor plate assembly with
anchor plate end towards mast, (be certain floor sur-
face is clean and free of any metal chip or debris
which may stick to lubricated chains or lay chains in
a clean bucket).
19. Assemble the chain/anchor plate assembly and the
chain anchor block to the cylinder rod end using the
anchor plate/block attach pin and snap ring.
20. Slide mast section-2 back into section-1 until top
and bottom ends are even.
Top of Mast Section-2 - Chain Anchor/Sheave Wheel Installation
1. Anchor Block
2. Sheave Pin
3. Narrow Spacer Tube (a)
4. Sheave Wheels (Wide) (a)
5. Thrush Washers (a) 6. Sheave Pin Support
Plates (a)
7. Key
8. Support Plate Screws (b)
9. Align Pin Holes
Note: (a) Install one on both sides of anchor block.
(b) Apply Loctite #242 to threads on final assembly.
Top of Mast Section-2 - Narrow Chain Set Installation
1. Anchor Block Attach Pin
2. Narrow Chain Set 3. Hole Through Anchor
Block
4. Snap Ring