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GEAR-DRIVE 1694778 - Caterpillar



1694778 GEAR-DRIVE Caterpillar parts 789C, 789D GEAR
Rating:
26
Alternative (cross code) number:
CA1694778
169-4778
1694778
Caterpillar 1694778 GEAR-DRIVE
Weight: 8 pounds 3 kg.

Buy GEAR-DRIVE 1694778 Caterpillar genuine, new aftermarket tractor parts with delivery
TRUCK,

Compatible equipment models: 1694778:

TRUCK  789C   789D   Caterpillar
Number on catalog scheme: 15
 
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Information:

Specification
Table 1
"Relief Valve (Main) - Test and Adjust"    
Date     Machine Serial Number    
Machine Settings     Engine Speed    
Speed Dial "10"
AEC switch OFF
Item     Specification     Actual    
Main Relief     35000 + 500 - 1000 kPa (5076 + 73 - 145 psi)        Required Tools
Illustration 1 g02571852
Tooling (A) 198-4240 Digital Pressure Indicator Gp
Table 2
Tool    Item    Qty    Part Number    Description    
A         198-4240     Digital Pressure Indicator Gp    
    A1     1     198-4234     Indicator    
A2 1     198-4239     Pressure Sensor
41,368 kPa (6,000 psi)    
A3 1     198-4236     Extension Cable    Machine Preparation
Position the machine on level ground and stop the engine.
Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".
Illustration 2 g01217778
Pump compartment (1) Pressure tap (delivery pressure for drive pump) (2) Pressure tap (delivery pressure for idler pump) (3) Pressure tap (power shift pressure)
Attach a 41,368 kPa (6,000 psi) pressure sensor to pressure tap (1) .Test Procedure
Start the engine.
Place the machine controls at the following settings: engine speed dial "10" and AEC switch OFF. Refer to Testing and Adjusting, "Engine Performance - Test (Engine Speed)" for engine rpm settings.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Open the bucket until the bucket cylinder rod is at the full retraction.
Check the main relief valve pressure setting at pressure tap (1) .
Return the joystick for the bucket to the NEUTRAL position.
The main relief valve pressure setting should be 35000 + 500 - 1000 kPa (5076 + 73 - 145 psi). If the main relief valve pressure setting is not within the specification, adjust the main relief valve pressure setting.Adjustment Procedure
Illustration 3 g00666196
(4) Adjustment screw (5) Locknut (6) Main relief valve
In order to adjust the main relief valve, loosen locknut (5) and turn adjustment screw (4) until the pressure gauge reading at pressure tap (1) is 35000 + 500 - 1000 kPa (5076 + 73 - 145 psi).Note: Turning adjustment screw (4) clockwise increases the pressure. Turning adjustment screw (4) counterclockwise decreases the pressure.Note: Always make final pressure adjustments on pressure rise.
Tighten locknut (5) to a torque of 50 10 N m (37 7 lb ft).
Temporary Setting of the Main Relief Valve
Note: A temporary setting of the main relief valve is required before any line relief valve can be adjusted.
The main relief valve pressure setting should be 35000 + 500 - 1000 kPa (5076 + 73 - 145 psi). If the main relief valve is not within the specification, adjust the main relief valve pressure setting to the correct pressure specification before performing Step 2. Refer to Testing and Adjusting, "Relief Valve (Main) - Test and Adjust".
Illustration 4 g00666196
Top of main control valve (4) Adjustment screw (5) Locknut (6) Main relief valve
Loosen locknut (5) and turn adjustment screw (4) clockwise for one half turn. Tighten locknut (5) to the specified torque.Note: Always make final pressure adjustments on pressure rise.

Caterpillar parts catalog:

Caterpillar parts catalog
789C Off-Highway Truck 2BW00001-UP (MACHINE) POWERED BY 3516 Engine
789D Off-Highway Truck SPD00001-UP (MACHINE) POWERED BY 3516 Engine
789D XQ Off-Highway Truck SHH00001-UP (MACHINE) POWERED BY 3516 Engine


Parts gear Caterpillar catalog:

2W6081 GEAR AS-DRIVE
3412, 3412C, 3412D, 3412E, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5230, 5230B, 776C, 776D, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 793B, 793C, 793D, 797, 797B, 994, 9...
8N0896 GEAR
3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 854...
2W2895 GEAR-CRANKSHAFT
3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130, 5130B, 5230, 5230B, 776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 797...
1011364 GEAR AS-IDLER
3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 5130B, 5230B, 776D, 777, 777B, 777C, 777D, 784C, 785C, 789, 789B, 789C, 789D, 793C, 793D, 797, 854G, 992G, 994D, 994F, 994H, D11N, D11R, PM3...
2102266 GEAR-LOCK
120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 143H, 14H, 14H NA, 14M, 160H, 160H ES, 160H...
3P0747 GEAR-OIL PUMP
589, 768C, 769C, 769D, 771C, 771D, 773B, 773D, 775B, 775D, 776, 776C, 776D, 777, 777D, 777F, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 793, 793B, 834G, 834H, 836G, 836H, 988G, 988H, AD40, A...
7D3349 GEAR-PUMP DRIVE
769C, 769D, 771C, 771D, 772, 773, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777B, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 793B, 793C
7D3366 GEAR-PUMP IDLER
769C, 769D, 771C, 771D, 772, 773, 773B, 773D, 775B, 775D, 776C, 776D, 777, 777B, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D, 793B, 793C
1171005 GEAR-PLANETARY
784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 789D
2167369 GEAR SET
785D, 789D, 793D, 793F
2435387 GEAR-PLANETARY
784C, 785C, 785D, 789C, 789D, 793C, 793D
2435388 GEAR-PLANETARY
784C, 785C, 785D, 789C, 789D, 793C, 793D
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