49.
Install phasing cable pulley to stubshaft on bot-
tom of fourth intermediate mast weldment. In-
stall washer on outside of pulley.
50.
Install snap rings to outside of both round belt
pulley and phasing cable pulley. See Figure 11.
NOTE:
Do not adjust setscrews at this moment.
Start the thread and do not apply pressure to slider
block.
NOTE:
Apply Loctite® Blue 242 Threadlocker to
setscrew threads prior to installation.
51.
Install two setscrews on each mast slider block,
on top inside of third intermediate mast weld-
ment. See Figure 9.
52.
Loosen self-tapping screws and tighten set-
screws to 2.1 N•m (18.6 lbf in)to close gap be-
tween mast slider blocks and the edge of chan-
nel on the fourth intermediate mast weldment.
See Figure 14 for gap dimensions.
WARNING
Use a lifting device to move mast weldments to
prevent serious injury. Each mast weldment
weighs approximately 68 kg (150 lb).
53.
Using a lifting device, lift carriage weldment
and slide it through mast slider blocks on top of
fourth intermediate mast weldment to the posi-
tion shown in Figure 15. This provides access to
chain sheave stubshafts on fourth intermediate
mast weldment.
54.
Install two chain sheaves onto top stubshaft of
fourth intermediate mast weldment using two
snap rings. See Figure 11.
55.
Install two lift chains, with a length of
2000.25 mm (78 3/4 in.), to two chains anchors
using 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.
56.
Install free end of lift chain (no chain anchor at-
tached) to chain retainer blocks at top of third
intermediate mast weldment with chain anchor
pins and cotter pins. See Figure 10.
1. CARRIAGE WELDMENT
2. CHAIN ANCHOR
3. PHASING CABLE PULLEY
4. ROUND BELT PULLEY
5. LIFT CHAINS
6. CHAIN SHEAVE STUBSHAFT
7. CHAIN SHEAVE
Figure 15. Assembling Carriage Weldment to
Fourth Intermediate Mast Weldment
4000 SRM 1916
Mast Repair
19