Chapter 2. OPERATING INSTRUCTIONS - TM-5-4310-348-140030

Table 1-1. Table of Manufacturer Torque Values.

Figure 2-1. Air compressor controls and instruments

TM-5-4310-348-14 Compressor Airm Reciprocating Electric Motor Driven Receiver Mounted 2HP 5 CFM 175 PSI (INGERSOLL-RAND MODEL 234C2) Manual
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CHAPTER 2

OPERATING INSTRUCTIONS

WARNING

If equipment: fails -to operate, refer to troubleshooting procedures in Chapter 3.

Section I. OPERATING PROCEDURES

2-2. Operation under Usual Conditions

2-1. Control and Instruments

a. Preparation for Starting."

a. General. This section will describe .the-various

controls and instruments (fig,2-1) and provide the

(1) Perform

the before operation services

operator sufficient information to insure proper operation

(Table 3-1).

of the air compressor.

(2) Check that all tools, rags, or other foreign

b. Pressure Switch. The pressure switch (fig. 2-1)

objects have been removed from the compressor

is the automatic start and stop control. It makes and

(receiver) area.

breaks the electrical circuit starting and stopping the

driving motor.. The pressure switch is piped to the

(3) With ON-OFF switch on motor starter at

receiver, and is actuated by changes in air receiver

OFF, turn on power from source.

pressure.

NOTE

c. Pressure Gage. The pressure gage (fig. 2-1) dial

When moving ON-OFF switch to

is marked with a dotted line at 175 psi, and a solid line at

ON, be prepared to stop the

200 psi. When the -gage indicator hand points at 175 (or

compressor instantly, if rotation

below) the pressure switch will turn the drive motor ON.

does not match the direction

When the hand reaches 200, the pressure switch will turn

indicated by the red arrow at upper

the drive motor OFF.

left of the belt guard assembly.

d. Motor Starter. The motor, starter (fig. 2-1) must

be connected to a controlled:; power source of 115 volts

b. Starting.

Start" the air compressor; unit by

alternating current. When that power reaches the motor

moving the ON-OFF switch to ON.

starter, and the ON-OFF switch is moved to ON, the

motor will drive the compressor until the pressure switch

c. Stopping.

Stop the air compressor unit by

is actuated (c. above).

moving the ON-OFF switch to OFF.

e. Safety Relief Valve. The safety relief valve (fig.

d. Placing Unit in Stand by Condition. Place -the

2-1) is set by the factory to blow off at 210 psi. This

unit in stand by condition as follows:

prevents overpressure, should the pressure switch

(1) Check-the oil level

become inoperative.

(2) Drain receiver of condensate (para 3-11c.).

f. Inflation Gage. The inflation gage (fig. 2-1)

controls, and indicates, the amount of air being

(3) Move ON-OFF switch to OFF.

discharged into tires of various sizes.

e. Placing Unit in Shutdown Condition.

g. Check Valve. There is a check valve screwed

(1) Perform steps (1), (2), and (3) of d. above.

into the air receiver at the point where; the compressor

cylinder discharge line enters the receiver. This valve

(2) Turn power off at source, and lock it out.

prevents air from the receiver returning to the compressor

cylinder, after the compressor has stopped running and

the unloader valve has released all pressure inside the

compressor.

Section II. OPERATION OF AUXILIARY EQUIPMENT

There is no auxiliary equipment with this end item.

2-1

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