4D1939 YOKE Caterpillar parts
641, 651, 666
Rating:
Alternative (cross code) number:
CA4D1939
4D-1939
4D1939
CA4D1939
4D-1939
4D1939
Weight: 12 pounds 5 kg.
WHEEL TRACTOR,
Information:
Table 1
Transmission Pressures (1)    
Pressure     Pressure Tap     Position of Governor Control Lever     Adjustment    
Pressure at Low Idle Pressure at High Idle (2)    
Transmission Lubrication Oil (S/N:1AY1-UP
, S/N:; 7WY1-UP
, and S/N:; B6E1-UP
)     (A)     This pressure is a minimum of
21 kPa (3 psi).     This pressure is
379 to 448 kPa (55 to 65 psi) at 2100 rpm. The transmission is in THIRD speed and in NEUTRAL position.     -    
Transmission Lubrication Oil (S/N:1WY1-UP
)     (A)     This pressure is a minimum of
7 kPa (1 psi).     This pressure is
145 to 179 kPa (21 to 26 psi) at 2100 rpm. The transmission is in THIRD speed and in NEUTRAL position.     -    
( 1 ) This data is taken when the following conditions are met: oil at normal operating temperature, parking brake engaged and installed axle shafts.
( 2 ) The data in this column is taken with the engine at high idle. The transmission lubrication pressure is not taken with the engine at high idle.
Caterpillar parts catalog:
Parts yoke Caterpillar catalog:
5D2106
YOKE ASSEM.
650B, 666
650B, 666
3644406
YOKE-END
938K
938K
3570598
YOKE
938K
938K
3665615
YOKE AS
938K
938K
3644407
YOKE-END
938K
938K
3651297
YOKE GP
938K
938K
6J5625
YOKE
651B, 657B, 666
651B, 657B, 666
5D0534
YOKE
657, 657B, 666
657, 657B, 666
4D1959
YOKE
641, 651
641, 651
5J8805
YOKE
641, 657
641, 657
5J8804
YOKE
641, 641B, 657, 657B
641, 641B, 657, 657B