613C Series II Wheel Tractor-Scraper Machine Systems Caterpillar

Elevator Control Valve - Remove

Usage:

Removal Procedure

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At operating temperature the implement hydraulic oil tank is hot and under pressure. Hot oil can cause burns.

To prevent possible injury, release the pressure in the implement hydraulic system before hydraulic lines or components are disconnected or removed.

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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 machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates.

Park the machine on a hard, level surface. Lower the scraper bowl to the ground and engage the parking brake. Chock the wheels in order to prevent the machine from moving.

Put identification marks on all lines, hoses, wires, and tubes for installation purposes. Plug all lines, hoses and tubes. This helps prevent fluid loss and contamination of the oil system.

Drain the hydraulic tank. Drain the fluid into a suitable container. The hydraulic tank has a capacity of 98 L (25 US gal) .

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Illustration 1	g00455727

Remove nut (1) and the clip from elevator control valve (2) . Remove bolt (3) and the clip from bracket (4) . Remove electrical connection (5) from the clip and disconnect electrical connection (5) . Lay the cables aside.

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Illustration 2	g00455728

Remove four bolts (6) from fender (7) .

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Illustration 3	g00455729

Loosen retaining nut (8) and disconnect tube (9) . Remove two bolts (10) from bracket (4) .

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Illustration 4	g00455731

Remove two bolts (11) from bracket (4) . Remove bracket (4) from the machine.

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Illustration 5	g00455732

Loosen retaining nut (12) and disconnect hose (13) from elevator control valve (2) . Remove cotter pin (14) from pin (15) . Remove pin (15) from yoke rod end (16) . Remove yoke rod end (16) from elevator control valve (2) .

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Illustration 6	g00455733

Remove four bolts (17) and two half flanges (18) from elevator control valve (2) . Disconnect hose (19) from elevator control valve (2) . Remove four bolts (20) and two half flanges (21) from elevator control valve (2) . Disconnect hose (22) from elevator control valve (2) .

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Illustration 7	g00455734

Remove four bolts (23) and two half flanges (24) from elevator control valve (2) . Disconnect hose (25) from elevator control valve (2) .

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Illustration 8	g00455735

Loosen retaining nut (26) and disconnect hose (27) from elevator control valve (2) .

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Illustration 9	g00455736

Loosen retaining nut (28) and disconnect hose (29) from elevator control valve (2) .

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Illustration 10	g00455737

Loosen retaining nuts (30) and (31) and remove tube (32) from elevator control valve (2) .

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Illustration 11	g00455738

Attach a nylon lifting strap and a hoist to the elevator control valve. Remove two bolts (33) and (34) from the elevator control valve (2) . Remove the elevator control valve from the machine. The elevator control valve weighs 35 kg (77 lb) .