Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)Table 2-1. Unit Preventive Maintenance Checks and Services (cont)

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Table 2-1. Unit Preventive Maintenance Checks and Services (cont)

TM-5-1940-277-20 Boat Bridge Erection Twin Jet Aluminum Hull MODEL USCSBMK1 (1940-01-105-5728) MODEL USCSBMK2 (1940-01-218-9165) Manual

Table 2-1. Unit Preventive Maintenance Checks and Services (cont)

TM 5-1940-277-20

TM 1940-20/2

Table 2-1. Unit Preventive Maintenance Checks and Services (cont)

W-Weekly

Q-Quarterly

S-Semiannually

Item to be inspected

Interval

Procedure: Check for and have repaired, filed,

Item

or adjusted as needed

No.

S Item

Perform all operator PMCS first

BATTERIES AND BATTERY BOXES

Battery water levels. Open and secure battery compartment hatch. Remove

battery box tiedown straps (1) battery box covers (2) and fill caps (3) from

battery cells. Check for proper water level in cells. Proper water level is 3/8

inch (9.5 mm) above plates. If water level is less than 3/8 inch (9.5 mm), add

clean, clear water (distilled water is preferred) and install fill cape. Check for

and remove corrosion.

CAUTION

Do not set batteries on deck, hatches, or boat. This may

result in corrosive deterioration of boat aluminum.

Water accumulation in battery boxes. Check inside of battery boxes (4) for

water. If water is found, disconnect negative cable (5) and then positive

cable (6) from battery (7) and remove battery. Do not set batteries down on

the boat. Remove battery box and property dispose of acidic water. Clean and

wipe box dry. Install battery box, battery cables, cover (2), and tiedown

straps (1). Close compartment hatch.

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