28.
Install two chain anchors to chain retainer
blocks in the bottom of third intermediate mast
weldment with four nuts and two pins. See Fig-
ure 10.
29.
Pull third intermediate mast weldment flush
with first and second intermediate mast weld-
ments.
30.
Install two mast slider blocks into top of third
intermediate mast weldment with four self-tap-
ping screws. Tighten self-tapping screws to
2.1 N•m (18.6 lbf in). See Figure 9.
31.
Install second phasing cable by routing threa-
ded end through bracket on top of first inter-
mediate mast weldments crossmember, around
phasing cable pulley on bottom of second inter-
mediate mast weldment and up to bracket on
lower crossmember of third intermediate mast
weldment. See Figure 5.
32.
Attach phasing cable to bracket on top of third
intermediate mast weldment with spring,
washer, and nut. See Figure 5.
33.
Install two washers (one on each side) to bot-
tom stubshafts on third intermediate mast
weldment. See Figure 11.
34.
Install phasing cable pulley to right side of
stubshaft and round belt pulley on left side of
stubshaft on bottom of third intermediate mast
weldment. See Figure 11 and Figure 12.
35.
Install washers and snap rings on outside of
pulleys.
WARNING
Use a lifting device to move mast weldments to
prevent serious injury. Each mast weldment
weighs approximately 68 kg (150 lb).
36.
Using a lifting device, lift fourth intermediate
mast weldment and slide it through slider
blocks on top of third intermediate mast weld-
ment to the position shown in Figure 13. This
provides access to chain sheave stubshafts on
third intermediate mast weldment.
37.
Install two chain sheaves onto top stubshafts of
third intermediate mast weldment using snap
rings. See Figure 11.
38.
Install two lift chains, with a length of
1924.05 mm (75 3/4 in.), to two chain anchors
with two chain anchor pins and two cotter pins.
See Figure 10.
NOTE:
During installation, chain anchor pins must
face outboard side of mast. See Figure 10.
39.
Install free end of lift chain (no chain anchor at-
tached) to chain retainer blocks at top of second
intermediate mast weldment with chain anchor
pins and cotter pins. See Figure 10.
40.
Route chains over chain sheaves on third inter-
mediate mast weldment.
41.
Install two chain anchors to chain retainer
blocks on bottom of fourth intermediate mast
weldment with four nuts and two pins. See Fig-
ure 10.
42.
Pull fourth intermediate mast weldment flush
with the first, second, and third intermediate
mast weldments.
43.
Install two mast slider blocks with four self-
tapping screws into the bottom of fourth inter-
mediate mast weldment. Tighten self-tapping
screws to 2.1 N•m (18.6 lbf in). See Figure 9.
44.
Install two mast slider blocks with four self-
tapping screws into the top of fourth intermedi-
ate mast weldment. Tighten self-tapping screws
to 2.1 N•m (18.6 lbf in). See Figure 9.
45.
Install third phasing cable by routing threaded
end through bracket on top of second intermedi-
ate mast weldments crossmember, around
phasing cable pulley on bottom of third inter-
mediate mast weldment and up to bracket on
lower crossmember of fourth intermediate mast
weldment. See Figure 5.
46.
Install phasing cable to fourth intermediate
mast weldment bracket with spring, washer,
and nut. See Figure 5.
47.
Install washers to top and bottom stubshafts on
fourth intermediate mast weldment. See Fig-
ure 11.
48.
Install round belt pulley to stubshaft on top of
fourth intermediate mast weldment. Install
washer on outside of pulley. See Figure 11 and
Figure 12.
Mast Repair
4000 SRM 1916
18