TM 5-1940-322-24
0144 00
CAPSTAN, TOW HOOK, AND MOUNTING POST BRACKET MAINTENANCE (Contd)
TOW HOOK ASSEMBLY
1.
If removed, install two jam nuts (6) on stop screws (7) as noted at removal.
2.
Install two stop screws (7) on tow hook body (8) and tighten jam nuts (6).
3.
Install buffer bracket (13) on tow hook body (8) with three screws (14).
4.
Install circular buffer (15) on buffer bracket (13) with new locknut (12).
5.
Install boss (22) on quick release lever (5) with new spring pin (21).
6.
Install quick release lever (5) on tow hook body (8) with shoulder bolt (10), spacer sleeve (3),
washer (2), and new locknut (1).
7.
Position quick release pin (9) through tow hook body (8). Install quick release lever (5) on quick
release pin (9) with new spring pin (4).
8.
Install tow hook (16) on tow hook body (8) with screw (11), washer (17), spring retainer (18), and new
locknut (19).
9.
Install spring (20) on quick release lever (5) and spring retainer (18).
MOUNTING POST BRACKET INSTALLATION
Install mounting post bracket (36) on aft deck (35) with four washers (41), screws (42), washers (40), and
new locknuts (39). Tighten locknuts (39) to 160 lb-ft (217 Nm).
TOW HOOK INSTALLATION
1.
Apply light coat of grease to pivot shaft (28) and spring washer (30).
2.
Install pivot shaft (28) in tow hook assembly (29).
3.
Install tow hook assembly (29) and pivot shaft (28) on tow hook mounting bracket (32) with
washer (31), spring washer (30), washer (33), and new locknut (34). Tighten locknut (34) until tow
hook assembly (29) has tension when moved from full port to full starboard positions.
CAPSTAN INSTALLATION
1.
Install new gasket (43) and capstan gear assembly (45) on mounting post bracket (36) with six
screws (44), washers (37), and new locknuts (38). Tighten locknuts (38) to 25 lb-ft (34 Nm).
2.
Apply light coat of GAA grease on needle roller bearings (46).
NOTE
Ensure collets are in position prior to proceeding to step 3.
3.
Install rope drum (26) over capstan gear assembly (45) and push collets (47) to outward position.
4.
Install feeder arm (25) over collets (47) and on rope drum (26) and main spindle (27).
5.
If removed, apply light coat of grease on new O-ring (24). Install O-ring (24) on threaded cap (23).
6.
Install threaded cap (23) on main spindle (27) and feeder arm (25).
7.
Install capstan handle and check operation of capstan (TM 5-1940-322-10).
8.
Lower and secure mast (TM 5-1949-322-10).
9.
Close hydrojet hatches (TM 5-1940-322-10).
0144 00-6
