0018
TM 1-4920-924-13&P
AVIATION SHOP EQUIPMENT CONTACT MAINTENANCE (AV SECM) SYSTEM MAINTENANCE
INSTRUCTIONS FOR FIRE EXTINGUISHER BRACKET - (CONTINUED)
2.
Repair or replace ire extinguisher mounting plate (Figure 1, Item 5) if 3/8-16 inch stainless steel hex nuts
(Figure 1, Item 7) will not tighten.
3.
Inspect ire extinguisher bracket (Figure 1, Item 6) for damage that would deem ire extinguisher bracket
(Figure 1, Item 6) non-operational.
4.
Replace ire extinguisher bracket (Figure 1, Item 6) if deemed non-operational.
5.
Inspect ire extinguisher mounting plate (Figure 1, Item 5) for loose 3/8-16 X 0.875 inch hex head bolts
(Figure 1, Item 1) and tighten if necessary.
END OF TASK
REMOVE
1. Remove four 3/8-16 inch stainless steel grade 2 hex nuts (Figure 1, Item 7), four 3/8 inch spring lock
washers (Figure 1, Item 2), and four 3/8 inch lat washers (Figure 1, Item 3) from ire extinguisher bracket
(Figure 1, Item 6).
2. With ire extinguisher bracket (Figure 1, Item 6) removed, remove four 3/8-16 X 0.875 inch hex head bolts
(Figure 1, Item 1), four 3/8 inch spring lock washers (Figure 1, Item 2) and four 3/8 inch lat washers
(Figure 1, Item 3) from ire extinguisher mounting plate (Figure 1, Item 5).
3. Remove ire extinguisher mounting plate (Figure 1, Item 4).
END OF TASK
INSTALL
NOTE
Ensure threads of bolts are not damaged prior to reinstalling bolts.
1.
Position new or repaired ire extinguisher mounting plate (Figure 1, Item 5) by aligning bolt holes with
inserts in shelter.
2.
Install four 3/8-16 X 0.875 inch hex head bolts (Figure 1, Item 1), four 3/8 inch spring lock washers
(Figure 1, Item 2) and four 3/8 inch lat washers (Figure 1, Item 3) through holes in ire extinguisher mounting
plate (Figure 1, Item 5) into inserts installed in shelter.
3.
Tighten mounting hardware (Figure 1, Item 1 through 3) securely.
4.
Position ire extinguisher bracket (Figure 1, Item 6) over 3/8-16 X 0.75 inch lush mount PEM studs
(Figure 1, Item 4) of ire extinguisher mounting assembly (Figure 1, Item 5).
5.
Attach ire extinguisher bracket (Figure 1, Item 6) by installing four 3/8-16 inch stainless steel grade 2 hex
nuts (Figure 1, Item 7), four 3/8 inch spring lock washers (Figure 1, Item 2) and four 3/8 inch lat washers
(Figure 1, Item 3).
6.
Tighten mounting hardware (Figure 1, Item 2, 3 and 7) securely.
7.
Position ire extinguisher in ire extinguisher bracket (Figure 1, Item 6), and engage clamp securing ire
extinguisher.
END OF TASK
END OF WORK PACKAGE
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