Description and operation – Spicer Tandem Drive Axle Dual Range & Double Planetary 34,000-45,000 lbs User Manual
Page 62

Axle Range Selection and Inter-Axle Differential Lockout System
(with Axle Range Interlock and Straight-air type Lockout)
Air pressure with axle in High Range,
Inter-Axle Differential Engaged, and
Axle Shifter Valve Lever Blocked.
Pressure switch and speedometer adapter
required for vehicles with transmission
drive speedometers.
Solenoid valve required for vehicles
not equipped with automatic safety brakes.
Description and Operation
The Axle Range Interlock feature in this system is designed to prevent
axle shifting when the inter-axle differential is locked out (or when
lockout is engaged).
The basic shift system operates the same as the standard shift system to
shift axle and engage or disengage lockout. However, it varies by adding
an Interlock Pin Assembly to the axle range shifter valve and an Interlock
Control Valve to the lockout cylinder. These two components are inter-
connected with air lines (see illustration above). In operation, the Interlock
Pin Assembly blocks movement of the axle range shifter valve lever when
air pressure is present. Refer to the following page for operation
description.
63
- DSP40 Tandem Axle - Dare to Compare (2 pages)
- Ratio Flex Program Guide (46 pages)
- Italcardano Wing In A Box Product Line (3 pages)
- Vibration Diagnostics (1 page)
- Carrier-To-Housing Joint Leak (6 pages)
- Front Axle Shafts for the Jeep JK (2 pages)
- S400 Helical Gear Retrofit Kit Installation (2 pages)
- Electric Shift Unit (1 page)
- Approved Lubricant (16 pages)
- Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock (102 pages)
- Kingpin Bushing and Seal Installation Instructions (2 pages)
- ROUND BEARING DRIVESHAFT COMPONENTS (11 pages)
- NEW REDESIGNED 40K TANDEM CARRIERS (6 pages)
- HAXL-PNI-34 (1 page)
- Tandem Drive Axles Service Manual S400 (34 pages)
- HAXL-PNI-31 (1 page)
- Single Drive Axles Service Manual: S170, S190, S590 (76 pages)
- PDU Cover & Outer Pinion Support Bearing for 46,000 LB (2 pages)
- 2007 Spicer Driveshafts Service Manual (32 pages)
- DRIVELINE COMPONENTS CATALOG SLIP YOKE ASSEMBLIES (28 pages)
- DualRange Tandem Axles (8 pages)
- S400 Redesigned Power Divider Parts for Service (2 pages)
- Wing Bearing Products U-Joint Identification Chart (1 page)
- 10 Series Driveshafts (86 pages)
- Driveline Components Catalog - Companion Flanges (24 pages)
- Gear & Pinion and Wheel Diff Case Kits Released for D_R170, D_R190 Models (3 pages)
- DST40-(P) (3 pages)
- 22719X, MODEL 44 POWER LOCK DISC AND PLATE KIT (1 page)
- 126155 (1 page)
- 2011 Spicer Bulletin 3; SERVICE_TECHNICAL INFORMATION (1 page)
- Drive Axles Service Manual Single Axles 2-Speed & Double Reduction (34 pages)
- X510-5DSD BILLS OF MATERIAL DODGE CATALOG CORRECTIONS (2 pages)
- Dana “I” Series (2 pages)
- Elimination of PDU Fill Plug On Tandem Drive Axles (2 pages)
- V Drive Components (1 page)
- RST41 (1 page)
- Torsionally Tuned-40 Tandem Drive Axles (2 pages)
- Drive Axles Illustrated Parts List DSS40, DDS40, RSS40, and RDS40 (28 pages)
- Single Drive Axles Service Manual: S140 Series (44 pages)
- DRIVELINE COMPONENTS CATALOG COUPLING SHAFTS - SPL and 10 Series (16 pages)
- Thick Flange Design Carriers (2 pages)
- 2002 Spicer Bulletin; SERVICE_TECHNICAL INFORMATION (1 page)
- Pre-applied Thread Adhesive Compound on Yoke End Nuts (6 pages)
- U-Tube Breather Assembly (2 pages)
- 130542 (1 page)