Section IV. UNIT MAINTENANCE PROCEDURES
This section presents Unit Maintenance procedures for the M3A1 CROP. These procedures may include servicing,
hoisting, inspection, cleaning, removal and disassembly, inspection, assembly, and installation and any procedures
needed for placing the M3A1 CROP or its components into service.
Servicing. The M3A1 CROP requires only lubrication and cleaning as service.
Hoisting Loaded M3A1 CROP.
An M3A1 CROP and load can weigh up to 36,250 lbs (16,443 kg). A loaded M3A1 CROP
on a PLS truck or trailer must not exceed 36,250 lbs (16,443 kg). Attach suitable lifting
device to avoid serious injury or death to personnel.
For other than ordinary operation, M3A1 CROP must be lifted with a forklift or other lifting
device. The M3A1 CROP is loaded on and off the Palletized Load System (PLS) Truck or
the PLS Trailer using the Load Handling System (LHS). Refer to TM 9-2320-364-10.
Do not load or unload M3A1 CROP with loose cargo or damage to equipment or cargo
Install web straps before lifting any load.
When lifting a loaded M3A1 CROP using multipurpose provision rings located at front and
rear of M3A1 CROP, use a spreader bar if necessary to avoid damage to load.
Inspection of Installed Parts. Perform inspection with the item in its normally installed posi-
tion/condition, considering accessibility and visibility of the item being inspected. The purpose of the inspection is
to determine if the item is damaged or incomplete to the extent that it should be replaced/repaired.
Inspect for loose, missing or damaged parts.
Inspect parts for dents, holes, worn spots, scratches, marred finish, cracks, rust and corrosion.
Look for loose or chipped paint, rust or gaps where parts are welded together. If a bad weld is
found, notify your supervisor.