Section VI. RADIO INTERFERENCE SUPPRESSION

TM 10-3930-627-12

Table 4-2. Troubleshooting-Continued

Malfunction

Probable cause

Corrective action

a. Reline brakes, paragraph 4-41.

12. Hard brake pedal.

a. Glazed linings.

b. Linings do not fit drums at all points.

b. Refer to direct support for drum or

lining grinding.

a. Linkage adjustment.

a. Adjust linkage, paragraph 4-42.

13. Excessive pedal travel.

b. Low on fluid.

b. Add specified brake fluid.

14. Brakes pull to one side.

Oil or grease on drum or lining.

Check and correct source of oil, then

clean drum and replace lining,

paragraph 4-41.

a. Worn hydraulic parts.

15. Truck will not lift rated load.

a. Refer to direct support maintenance.

16. Truck lifts, but will not lower.

Worn or plugged hydraulic parts.

Do not move truck unnecessarily. Block load

load.

in position and refer to direct support

maintenance.

Section VI. RADIO INTERFERENCE SUPPRESSION

10,000 ohm (nominal rating) suppression resistor (7, fig.

4-10. Methods Used to Obtain Suppression

4-1) and two 0.1 microfarad capacitors (8). Each end of

Possible sources of radio interference on the truck are

the resistor is fitted with recessed brass wood screw

the ignition and charging systems. In addition to the

inserts, into which the cut ends of the coil-to-distributor

inherent shielding of the steel truck structure, additional

high tension cable are installed. One capacitor is

suppression is obtained by using a resistor in the ignition

connected to the switch side coil primary terminal and to

secondary circuit, a capacitor across the ignition primary

ground. One capacitor is connected to the switch

circuit, and a capacitor on the switch terminal of the

terminal of the alternator voltage regulator and to ground.

alternator voltage regulator.

4-11. Interference Suppression Components

The interference suppression components are one

4-4