Complete workshop repair & service manual with electrical wiring diagrams for Caterpillar 950B Wheel Loader. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

Caterpillar 950B Wheel Loader Factory Service & Shop Manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

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SENR4984 - Schematic (950E Wheel Loader Electrical System)
SENR4725 - Schematic (950E WHEEL LOADER HYDRAULIC SYSTEM).pdf
SENR2268 - Disassembly and Assembly (950B WHEEL LOADER OPERATOR'S STATION)
SENR2266 - Schematic (950B & 950E WHEEL LOADERS HYDRAULIC SYSTEM).pdf
SENR2265 - Disassembly and Assembly (950B WHEEL LOADER VEHICLE SYSTEMS)
SENR2264 - Testing and Adjusting (950B & 950E WHEEL LOADERS HYDRAULIC SYSTEM).pdf
SENR2264 - Systems Operation (950B & 950E WHEEL LOADERS HYDRAULIC SYSTEM).pdf
SENR2263 - Specifications (950B AND 950E WHEEL LOADERS HYDRAULIC SYSTEM)
SENR2262 - Testing And Adjusting (950B & 950E WHEEL LOADERS AIR SYSTEM & BRAKES).pdf.pdf
SENR2262 - Systems Operation (950B & 950E WHEEL LOADERS AIR SYSTEM & BRAKES).pdf
SENR2261 - Specifications (950B AND 950E WHEEL LOADERS AIR SYSTEM AND BRAKES)
SENR2260 - Testing and Adjusting (950B & 950E WHEEL LOADERS STEERING SYSTEM).pdf
SENR2260 - Systems Operation (950B & 950E WHEEL LOADERS STEERING SYSTEM).pdf
SENR2259 - Specifications (950B & 950E WHEEL LOADERS STEERING SYSTEM)
SENR2258 - Disassembly and Assembly (950B WHEEL LOADER POWER TRAIN)
SENR2257 - Testing And Adjusting (950B POWER SHIFT TRANSMISSION).pdf
SENR2256 - Testing and Adjusting (950B & 950E WHEEL LOADERS POWER TRAIN).pdf
SENR2256 - Systems Operation (950B & 950E WHEEL LOADERS POWER TRAIN).pdf
SENR2255 - Specifications (950B & 950E WHEEL LOADERS POWER TRAIN)
SENR2254 - Disassembly and Assembly (3304 VEHICULAR ENGINE FOR 950B WHEEL LOADER)
SENR2253 - Testing and Adjusting (3304 DIRECT INJECTION VEHICULAR ENGINE WITH NEW SCROLL FUEL).pdf
SENR2253 - Systems Operation (3304 DIRECT INJECTION VEHICULAR ENGINE WITH NEW SCROLL FUEL).pdf
SENR2252 - Specifications (3304 DIRECT INJECTION VEHICULAR ENGINE WITH NEW SCROLL FUEL)
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EXCERPT:
Supplemental Steering System (optional)
10 of 14Supplemental Steering System
(1) Left neutralizer valve. (2) Hand metering unit (HMU). (3) Right neutralizer valve. (4) Check valve for pilot system. (5) Relief valve for pilot system. (6) Pilot section of pump. (7) Steering section of pump. (8) Implement section of pump. (9) Steering control valve. (10) Valve spool. (11) Orifice. (12) Left steering cylinder. (13) Hydraulic tank. (14) Oil cooler. (15) Right steering cylinder. (16) Flow switch. (17) Diverter valve. (18) Supplemental steering pump.
NOTE: The Hand Metering Unit will not give manual steering when the engine is stopped. Steering with a dead (stopped) engine can be done only when the Supplemental Steering System is installed.
The supplemental steering system has two purposes:
(1) To give an oil supply for the steering system if there is a failure of the primary system or if the engine stops when the machine is moving.
(2) To add oil to the primary oil flow at low engine rpm when the machine is moving.
NOTE: When the machine moves, the flow of oil from the supplemental steering pump either; (a) combines (flows together) with the flow from steering pump section (7) (at LOWER ENGINE rpm), or (b) is sent back to hydraulic tank (13) (at HIGHER ENGINE rpm). The supplemental flow starts to return to the hydraulic tank at 1450 ± 150 rpm.
The main components for the supplemental steering system are: supplemental steering pump (18), diverter valve (17) and flow switch (16).
The supplemental steering pump is a ground driven pump; it is turned as long as the machine moves. The pump gets its power from the output transfer gears of the transmission.
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Caterpillar 950B Wheel Loader Factory Service & Shop Manual (w/ 3304 Vehicular Engine Service Manual)