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 TM 55-1925-273-10-2
OPERATOR'S MANUAL
INLAND AND COASTAL LARGE TUG (LT)
PREVENTIVE MAINTENANCE CHECKS AND SERVICES INCLUDING LUBRICATION
AMS 2
Table 1. Preventive Maintenance Checks and Services Chart
ITEM INTERVAL MAN-
ITEM TO BE
PROCEDURE
EQUIPMENT
NO.
HOUR
CHECKED OR
NOT READY/
SERVICED
AVAILABLE IF:
1
Before
0.2
POTABLE WATER
Inspect tank, pressure gauge, pressure
HYDRO-
switches, and relief valve for leaks,
PNEUMATIC
damage, and secure mounting.
TANK
Air Charging
Pressure Gauge
Connection
Potable Water
30 35
25
40
20
45
15
50
10
55
5
0
60
Hydro Pneumatic Tank
Vent Valve
2
Before
0.3
STEERING GEAR
Inspect pump for secure mounting and
Class III leaks;
EMERGENCY
leaks. Observe hand pump for smooth
not securely
HAND PUMP
operation.
mounted. Pump
does not operate
smoothly.
Hydraulic
Accumulator
Rudder Angle Indicator
Steering Hydraulic Power
Pack Motor Controllers
330
34
0
3
2
1
Steering Gear
Emergency Hand Pump
3
2
1
Pressure Gauge
30 35
25
40
20
45
15
50
10
55
5
0
60
Steering Hydraulic
Power Pack
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