TM 55-1925-284-14&P
UNIT MAINTENANCE
MARINE SANITATION DEVICE FOR
INLAND AND COASTAL LARGE TUG (LT)
BLOWER ASSEMBLY, BLOWER; REPLACE
INITIAL SETUP:
References (continued):
Tools and Special Tools:
TM 55-1925-273-10
Tool Kit, General Mechanic's (Item 1, Table 2,
Materials/Parts:
Dry Cleaning Solvent (Item 5, Table 1,
Gloves, Chemical and Oil Protective (Item 1,
Table 3, WP 0038 00)
Goggles, Industrial (Item 2, Table 3,
Equipment Conditions:
Set to OFF MSD DISCHARGE PUMP AND
Tag, Danger (Item 7, Table 1, WP 0039 00)
BLOWER circuit breaker in 440V power panel
Tape, Antiseizing (Item 8, Table 1, WP 0039 00)
No. 4. Lock out and tag out (FM 55-502).
Blower (Item 5, Figure 3, WP 0037 00)
All ventilation fans operating normally (TM 55-1925-
273-10).
Personnel Required:
CLOSE valve CA-81 LP AIR SHUTOFF. Lock out
Two Watercraft Engineers, 88L
and tag out (FM 55-502).
References:
FM 55-502
TB 43-0218
WARNING
Never reuse locking hardware. Reuse of locking hardware such as lockwashers,
locking nuts, cotter pins, and lockwire can result in undetected loosening of fas-
tening hardware causing catastrophic component failure resulting in death, in-
jury, or damage to equipment. In accordance with TB 43-0218, ensure that all
locking hardware is discarded upon removal and replaced with new.
REMOVAL
1. Perform the Belt Replacement Removal procedure (WP 0016 00).
! CAUTION
Failure to use two wrenches while loosening unions, fittings, valves and piping may
cause damage to the valves, piping, fittings and unions.
2. Disconnect the blower discharge piping (figure 1, item 1) at the union (figure 1, item 2).
3. Remove the discharge piping (figure 1, item 1) from the check valve (figure 1, item 3).
4. Remove the check valve (figure 1, item 3) from the tee fitting (figure 1, item 4).
5. Remove the relief valve (figure 1, item 5) from the tee fitting (figure 1, item 4).
0021 00-1
