WARNING

TM 5-3655-210-12

WARNING

Take particular heed to specific cautions and warnings throughout this manual.

WARNING

Dry cleaning solvent, P-D-680 or P-S-661, used to clean parts is potentially dangerous to personnel and property. Use in

a well-ventilated area as the fumes are dangerous if inhaled. Avoid repeated and prolonged skin contact. Do not use

near open flame or excessive heat. Flash point of solvent is 100F. 138F. (38C. 59C.).

WARNING

Do not isolate sections of lines, components, or fittings not equipped with automatic pressure releases

without first releasing all residual gases.

WARNING

Personnel entering the conversion compartment must be equipped with a safety line securely attached. A safety guard

must be positioned to observed and assist persons working inside at all times.

SAFETY PRECAUTIONS

BEFORE OPERATION

Be sure the fire extinguisher is in place and in operating condition. Follow all lubrication and preventive maintenance

procedures with care, to avoid damaging the equipment. Shut down the engine before filling the fuel tank. Do not fill the

fuel tank while smoking, or within 50 feet of an open flame. Always provide a metal contact between the container and

tank when filling the fuel tank. Be sure trailer is properly grounded. Do not overfill a battery or splash electrolyte. Spilled

electrolyte will cause personal injury or equipment damage. Do not engage the starting motor for more than 30 seconds

at a time, without allowing a 3-minute cooling off period.

DURING OPERATION

When the refrigeration unit is operated manually install two pressure gages on the compressor; one on the suction side

and one on the discharge side, so that suction and discharge pressures may be checked. These pressures must not be

allowed to exceed their normal limits. Do not allow the cylinder filling unit to idle at charging pressures for long periods of

time. This will cause pressure buildup within the pressure vessels, and wear out the cylinder filling unit. Do not apply

power to drive shaft while personnel are positioned inside of operating compartment.

AFTER OPERATION

Shut the pressure off to any line, fitting, or valve before loosening the connections. Shut off the electrical power before

working on any electrical component. Disconnect the 220-volt power supply, disconnect one battery cable and set the

gasoline engine control switch to "manual" before performing any maintenance or service in the power compartment. If

this is not done, the equipment may start in response to the automatic controls. Before entering either pressure vessel,

be sure the compartment has been thoroughly ventilated. Never enter, or let personnel enter, the pressure vessels

unless personnel are stationed at the manway to observe continuously for signs of trouble caused by lack of air. While

carbon dioxide is not poisonous, large quantities can cause suffocation. Pump down the refrigerant from the refrigeration

compressor into the receiver before opening the compressor crankcase.