Section V. FIELD EXPEDIENT REPAIRS

Hose reel motor defective.

Tighten

loose

wiring

47.

Spotlight, Floodlights or Warning Lights

connections.

Replace

Inoperative

defective motor (para.

Probable cause

Possible remedy

104).

Wiring defective.

Tighten loose connections

and replace wiring as

46. Siren Inoperative

necessary (para. 80).

Beacon warning light switch Replace defective beacon

Probable cause

Possible remedy

defective.

warning light switch (para.

Wiring defective.

Tighten loose connections

91).

and replace wiring as

Rear floodlight defective.

Replace defective rear flood-

necessary (para. 80).

Beacon warning light defec-

light (para. 108).

Siren hand switch defective. Replace

defective

hand

tive.

Replace or repair defective

switch (para. 94).

beacon warning light (para.

Defective siren.

Replace or repair defective

84).

siren (para. 82).

Spotlight defective.

Replace defective spotlight

(para. 83).

Section V. FIELD EXPEDIENT REPAIRS

49. Transfer Case Lever Disengages

48. Field Expedient Repairs

Organizational maintenance troubles may occur

Trouble

Expedient remedy

Control lever will not stay in Wedge, block, or tie the

while the Ward Lafrance Model M44A1WLF Fire Truck

desired position.

control lever in the desired

is operating in the field where supplies and repair parts

position.

are not available and normal corrective action cannot be

performed. When this condition exists, the following

50. Loss of Water or Foam

expedient repairs may be used in emergencies, upon

the decision of the unit commander. Equipment so

Trouble

Expedient remedy

Hole in water or foam tank.

Plug hole with wooden plug

repaired must be removed from operation as soon as

or metal screw.

possible and properly repaired before being placed in

operation again.

Section VI. RADIO INTERFERENCE SUPPRESSION

are illustrated on figure 21.

51. General Methods Used To Attain Suppression

Essentially, suppression is attained by providing a

(2)

Ground strap. The unit has four

low resistance path to ground for stray currents. The

ground straps, two from chassis to frame and one each

methods used include shielding the ignition and high-

located on the frame to hose motor assemblies. The

frequency wires, grounding the frame with bonding

ground straps are illustrated on figure 21.

straps, and using capacitors and resistors. For general

information on radio interference suppression, see TM

(3)

Secondary Suppression Components.

11-483.

Tooth-type lockwashers are used to assure good metal-

to-metal contact where electrical components are

52. Interference Suppression Components

mounted.

53. Replacement of Suppression Components

Primary Suppression Components.

Primary Suppression Components. Replace

(1)

Capacitors.. The fire truck has four

ratio interference components with new components

capacitors locate(l on the turn signal flasher, siren, siren

flasher, and beacon warning light. The capacitors

TAGO 6839A