725 and 730 Articulated Trucks Machine Systems Caterpillar

Secondary Steering Pump and Electric Motor - Remove

Usage:

725 AFX

Removal Procedure

Start By:

Raise the hood. Refer to Operation and Maintenance Manual, "Hood Control".
Turn the battery disconnect switch to the OFF position. Refer to Operation and Maintenance Manual, "Battery Disconnect Switch".

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At operating temperature, the hydraulic tank is hot and under pressure.
Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.

Remove the filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. Remove the filler cap slowly in order to relieve pressure.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

Put identification marks on all lines, on all hoses, on all tubes and on all wires for installation purposes. Plug all lines, all hoses and all tubes. This helps prevent fluid loss and contamination of the oil system.
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Illustration 1 g00762413
Remove protective cap (1) for the auxiliary starting receptacle. Remove two bolts (2) and two washers (3) in order to remove step (4).
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Illustration 2 g00789071
Remove seven bolts (5) and seven washers (6) in order to remove hydraulic tank cover (7).
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Illustration 3 g00762719
Remove bolt (8), the washer, and two clips (9). Remove five bolts (10) and five washers (11). Lay bracket (12) aside.
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Illustration 4 g00762720
Remove nut (13) in order to disconnect ground cable (14). Pull back terminal boot (15) and remove nut (16) in order to disconnect positive cable (17).
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Illustration 5 g00762721
Loosen two retaining nuts (18) and remove tube (19).
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Illustration 6 g00762722
Loosen retaining nut (20) and disconnect hose (21). Loosen retaining nut (22) and disconnect hose (23).
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Illustration 7 g00762723
Remove four bolts (24) and four washers (25). With the aid of a second person, remove secondary steering pump and electric motor (26). The weight of the secondary steering pump and electric motor (26) is 25 kg (55 lb).
Remove four bolts (27), four nuts (28) and the washers in order to separate secondary steering pump and electric motor (26) from plate (29).
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