994D Wheel Loader Braking System Caterpillar

Pressure Switch (Parking and Service Brake Oil)

Usage:

994D 3TZ

9W-2653 Pressure Switch

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Illustration 1	g00288793

(1) Final installation torque ... 35 ± 3 N·m (25 ± 2 lb ft)

Maximum actuation pressure at -40°C to +121°C (-40°F to +250°F) ... 8270 kPa (1200 psi)

Deactuation pressure at -40°C to +121°C (-40°F to +250°F) ... 6890 ± 345 kPa (1000 ± 50 psi)

Contact "1-3" is normally closed below the deactuation pressure.

Contact "1-2" is normally open below the deactuation pressure.

175-3245 Pressure Switch

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Illustration 2	g00288793

(1) Final installation torque ... 48 ± 5 N·m (35 ± 3.7 lb ft)

Maximum actuation pressure at -40°C to +121°C (-40°F to +250°F) ... 8270 kPa (1200 psi)

Deactuation pressure at -40°C to +121°C (-40°F to +250°F) ... 6890 ± 345 kPa (1000 ± 50 psi)

Contact "1-3" is normally closed below the deactuation pressure.

Contact "1-2" is normally open below the deactuation pressure.

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