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Direct driver-controlled system – Spicer Single Drive Axles Service Manual: S170, S190, S590 User Manual

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63

Theo

ry of Operation

Theory of Operation

Direct Driver-Controlled System

1 - Cab-mounted control val ve (plunger in—valve open)
2 - Dry air supply tank 80–120 PSI
3 - Preferably equal in length
4 - Power supply
5 - Fuse or circuit breaker
6 - Indicator light or audible signal
7 - Wheel differential lock indicator switch

(part of axle assembly)
8 - Rear axle wheel differential lock air shift cylinder

(part of axle assembly)

9 - Forward rear axle wheel differential lock air shift cylinder

(part of axle assembly)
10 - Wheel differential lock indicator switch

(part of axle assembly)
11 - Indicator light of audible signal
12 - Fuse or circuit breaker
13 - Power supply
14 - 66468 Quick release valve (optional) located on frame rail

and within 10 feet of tubing from control valve

2

1

14

6

5

4

8

7

3

11

12

13

9

10