TM 10--3510--221--24
0138 00--1
FRONT AIR BAG REPLACEMENT
0138 00
THIS WORK PACKAGE COVERS:
Removal, Installation
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tape, Anti--Seizing (Item 10, WP 0271 00)
Washer, Lock (Item 29, WP 0275 00)
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
LADS power shut off at main control
enclosure (WP 0112 00).
REMOVAL
NOTE
In order to maintain optimum drum balancing performance front air bags should be replaced in pairs.
WARNING
Keep hands and feet clear of drums when venting air bags. Failure to follow this precaution
could result in severe personnel injury.
1. Vent air pressure from air bags (1) as follows:
a. Disengage two latches (2), then open access door (3).
b. Close manual valve (4).
c. Open petcock (5).
d. Open petcocks (6) on front air bags (1).
e. Allow air pressure to vent from air bags (1) then close petcocks (5 and 6).
NOTE
Step 2 applies to right front air bag on drum B only.
2. Remove eight screws (7), flat washers (8), and nuts (9), then remove access panel (10) from ISO frame (11).
3. Disconnect air line (12) from air bag (1).
4. Unthread petcock (6) with attached piping (13) from air bag (1).
5. Remove two screws (14), lock washers (15), and flat washers (16) securing air bag (1) to drum frame (17).
6. Remove two screws (18), lock washers (19), and plate (20) securing air bag (1) to pedestal (21).
7. Compress air bag (1) and remove from between drum frame (17) and pedestal (21).
8. Clean anti--seizing tape from threads of nipple (22).
