SECTION 4 -- LUBRICATION AND MAINTENANCE
4--64
RELAY DESCRIPTIONS
12x12 -- With and Less Cab
Refer to Figures 132/ 133
Relay
Function
1 Blank (Less cab)
Windshield Wiper -- Front
2 Blank (Less cab)
Windshield Wiper -- Rear
3 Ignition Relay
4 Lights
5 Starter
6 Blower Motor
7 Dip Beam Headlamps
8 Stoplamps
9 Main Beam Headlamps
10 Hydraulic Trailer Brake Pressure
11 Hydraulic Trailer Brake Supply
12 Stoplamps Switch Feed (Less cab)
+ Pnuematic Trailer Brake (With cab)
13 Blank (Less cab)
Engine Run and Cold Start (With cab--
Mechanical Engines Only)
14 Reverse Alarm
15 A/C Clutch Relay
16 Blank
17 Blank
18 Blank
19 Worklamps -- Front Lower
20 Worklamps -- Rear Lower
21 Electrical Supply
22 Blank
23 Blank
24 Blank
16x16 and 24x24 -- Less Cab
Refer to Figures 132/ 133
Relay
Function
1 Blank
2 Blank
3 Ignition Relay
4 Lights
5 Starter
6 Blank
7 Dip Beam Headlamps
8 Stoplamps
9 Main Beam Headlamps
10 Pneumatic Trailer Brake Pressure
11 Hydraulic Trailer Brake Supply
12 Stoplamps Switch Feed
13 Engine Cold Start Advance + Engine
Shutdown (Mechanical Engines Only)
14 Reverse Alarm
15 Blank
16 Blank
17 Blank
18 Blank
19 Worklamps -- Front Lower
20 Worklamps -- Rear Lower
21 Electrical Supply
22 Blank
23 Blank
24 Blank