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 TM 5-1940-277-10
TM 1940-10/1
Section II. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
GENERAL
1. To ensure that the bridge erection boat is ready for operation at all times, inspect it systematically for
defects. Correct defects discovered during operation of the unit as soon as operation has ceased. Stop
any operation which would damage the unit. Record deficiencies and corrective action taken on DA form
2404, Equipment Inspection and Maintenance Worksheet, at the earliest opportunity.
2. Before you operate. Always keep in mind the CAUTIONS and WARNINGS. Perform BEFORE (B) PMCS.
3. While you operate. Always keep in mind the CAUTIONS and WARNINGS. Perform DURING (D) PMCS.
4. After you operate. Be sure to perform AFTER (A) PMCS.
5. Weekly PMCS is for items whose condition should be checked on a regular basis to insure satisfactory
condition or performance.
6. If your equipment fails to operate, perform authorized troubleshooting procedures. Report any
deficiencies to unit maintenance using the proper forms. See DA PAM 750-8.
7. There are some items that need to be checked, but they are common in all parts of the boat and are not
listed separately in the PMCS tables. They are listed here. Remember to check them all each time you
do your PMCS.
WARNING
Dry cleaning solvent (P-D-680) vapor is harmful. Don't breathe in the
fumes. Use plenty of ventilation. Avoid repeated contact with your
skin.
A.Keep the boat dean: Dirt, grease, oil, and debris only get in the way and may cover up a serious
problem. Clean as you work and as needed. Use dry cleaning solvent (P-D-680) on all metal deck surfaces.
Use soap and water when you dean rubber or plastic material.
B. Bolts, nuts, and screws: Check them all visually for looseness, missing, bent, or broken condition.
Look for chipped paint, bare metal, or rust around bolt heads. If you find one you think is loose, report it to
unit maintenance.
C. Welds: Look for loose or chipped paint, rust, or gaps where parts are welded together. If you find a
broken weld, report it to unit maintenance.
D. Electric wires and connectors: Look for cracked or broken insulation,
E. Hoses and fluid lines: Look for wear, damage, and leaks, and make sure clamps and fittings are tight.
Wet spots show leaks and a stain around a fitting or connector can mean a leak. Report broken or leaking
hoses or lines to unit maintenance.
F. Control cables and linkage: Look for frayed or broken cable. Look for bent or broken rods and loose
connections. Report damaged or broken cables, bent or broken rods and loose connections to unit
maintenance.
G. Hatches: When opening battery, engine, or hydrojet compartment, inspect the hatches for missing
fasteners, hinges, stays. Report any missing or broken components to unit maintenance.
8. Purpose of inspection is to verify visually that all parts and items are in good condition and operational.
PMCS PROCEDURES
1. Every mission begins and ends with paperwork. There isn't much of it, but you have to keep it up to
date. The forms and records you fill out have several uses. They are a permanent record of the
services, repairs, and modifications made on your boat. They are reports to unit maintenance and to
your commander. And they are a checklist for you when you want to know what is wrong with your
boat after its last use, and whether those faults have been fixed. For information you need on forms
and records, see DA PAM 750-8.
2. Comments under "Equipment is Not Ready/Available If" column of the PMCS table tell you when the
boat should not be operated.
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