994D Wheel Loader Power Train Caterpillar


Modulating Valve (Torque Converter Impeller Clutch)

Usage:

994D 3TZ



Illustration 1g00450571

(1) Torque for the nut ... 12 ± 2 N·m (9 ± 1 lb ft)

(2) 135-2049 Spring

Length under test force ... 11 mm (.43 inch)
Test force ... 15 ± 1 N (3.4 ± .2 lb)
Free length after test ... 14.8 mm (.58 inch)
Outside diameter ... 4.57 ± 0.08 mm (.180 ± .003 inch)

(3) Lubricate the O-ring with a minimal amount of the lubricant that is being sealed.

(4) Torque for installing the orifice ... 2 ± 1 N·m (18 ± 9 lb in)

(5) Torque for installing the nipple assembly ... 14 ± 4 N·m (10 ± 3 lb ft)

(6) 118-3731 Spring

Length under test force ... 14.00 mm (.551 inch)
Test force ... 36.0 ± 1.8 N (8.10 ± .40 lb)
Free length after test ... 15.99 mm (.630 inch)
Outside diameter ... 12.1 mm (.48 inch)

(7) Apply 4C-9509 Sealant before installing the plug and the seal.

(8) Torque for installing the cartridge assembly ... 50 ± 5 N·m (37 ± 4 lb ft)

(9) Lubricate the O-ring with a minimal amount of the lubricant that is being sealed.

(10) Torque for installing the seat ... 19 ± 4 N·m (14 ± 3 lb ft)

Flow of SAE 30W oil at 1000 kPa (145 psi) pressure drop ... 65 L/min (17 US gpm)

Nominal coil voltage ... 12 VDC

Maximum coil voltage ... 14.5 VDC

Minimum coil voltage ... 10.7 VDC

Nominal coil resistance at 25°C (77°F) ... 7.75 ± 1.00 Ohms

Maximum coil resistance at 121°C (220°F) ... 12.68 Ohms

Minimum coil resistance at -40°C (-40°F) ... 5.81 Ohms

Nominal current draw at 25°C (77°F) ... 1.55 Amperes

Maximum current draw at -40°C (-40°F) ... 2.1 Amperes

Caterpillar Information System:

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