|
| |
TM 9-2350-253-34-2
2-82. MANHOLE COVER ASSEMBLY REPAIR.
This task covers:
a.
Removal
b.
Disassembly
c.
Cleaning and Inspection
d.
Assembly
e.
Installation
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
•
General mechanic's tool kit (Item 4, Appendix B)
•
Semitrailer uncoupled (refer to TM 9-2330-398-10).
•
Semitrailer bonded and grounded (refer to
Materials/Parts:
TM 9-2330-398-10).
•
Gasket (Item 66, Appendix F)
•
Tool box emptied (refer to TM 9-2330-398-10).
•
Preformed packing (Item 133, Appendix F)
WARNING
•
To avoid personal injury, always relieve pressure in tank shell and stand downwind
when manhole cover assembly.
•
Manhole fill cover assembly does not lock open. Injury can occur if manhole cover
accidentally closes on personnel.
a. REMOVAL
1.
Remove bolt (1), washer (2), and nut
(3) holding access locking ring (4) to
semitrailer.
2.
Remove locking ring (4), manhole cover
assembly (10), and manhole cover
gasket (12) from semitrailer. Discard
gasket.
b. INSTALLATION
1.
Remove nut (5), filler cap (7), adjusting
bolt (12), and spring (9) from secondary
latch (13).
2.
Remove relief valve (8) and preformed
packing (6) from filler cap (7). If relief
valve (8) is gummed up with product, or
if there are signs of obvious damage,
replace relief valve. Discard preformed
packing.
2-178
|
