PREOPERATIONAL CHECK - TM-9-4910-736-14-P0029

TM 9-4910-736-14&P

2-3. PREOPERATIONAL CHECK. Prior to using the test set, if a power supply

(0-60 V dc) is available, perform the following preoperational checks on the

test set protection circuits.

NOTE

If a power supply is not available, just perform a

power-on check as follows: connect the BAT LEADS

to the 12-volt battery (red + lead to + terminal

and black - lead to - terminal); set FUNCTION switch

to COND and verify that PILOT light comes on.

Connect the BAT LEADS to the power supply (red +12 V lead to + terminal

and black -12 V to - terminal). Set the power supply for 17.0 V dc.

Set the FUNCTION switch to COND. Check to see that the PILOT light is

off and the PUSH TO RESET window is red (circuit breaker tripped.

Set the power supply for 32 V dc. Check that PILOT light is still off

and PUSH TO RESET window is still red.

Reverse the BAT LEADS (red + lead to - terminal and black - lead to

+ terminal). Press the PUSH TO RESET switch and check that PILOT light is

off.

Set the power supply for 12 V dc.

Reconnect the BAT LEADS in correct polarity (red + lead to + terminal

and black - lead to - terminal).

Press the PUSH TO RESET switch.

Check that window is no longer red and

that the PILOT light is on.

2-4. CONDENSER TESTING. Condenser testing procedures include initial

procedures, leakage test, series resistance test, and capacitance test.

Figure 2-2 illustrates the various test connections described below.

Initial Procedures. Proceed as follows:

(1) Turn FUNCTION switch to OFF.

(2) When testing a condenser mounted in a distributor, disconnect the

distributor primary lead from the coil and block the ignition

points open.

(3) Connect the BAT LEADS to the battery as follows: Red +12 V lead

to + terminal and black -12 V lead to - terminal.

Leakage Test.

Proceed as follows:

(1) Connect TEST LEAD with red boot to pigtail of condenser and the

other TEST LEAD to the condenser case.