Spicer Tandem Drive Axle: DS_RS461, 462, 463, 521, 581, DT_RT_DP_RP461, 462, 463, 521, 581, 601, 651 - Manual (Page 34)

32
Axle Range Selection and Inter-Axle Differential Lockout System with Axle Range Interlock and Straight-air type
Lockout
Shift System
D is
e n
E n g a g e d
Air Pressure
Exhaust
Rear Axle
Shift Unit
Inter-Axle Differential Lockout Cylinder
Dry Air Tank
Air Pressure
Lockout
Selector
Valve
22
24
25
21
LOW
Range HIGH
Range
27
21
23
LOW
Range HIGH
Range
29
5
2
6
14
6
10 11
8 9
7
19
4
3
18
15 16
17
1
13 12