824K Wheel Dozer, 825K Soil Compactor and 826K Landfill Compactor Machine Systems Caterpillar


Location of Components (Power Train System)

Usage:

826K 232

Transmission



Illustration 1g03661146
(1) Transmission

The transmission is located below and rearward of the cab between the input and output gear housings.

Torque Converter



Illustration 2g03661180
(1) Transmission
(2) Torque converter

The torque converter is located in the input gear housing. The torque converter is located between the engine and the transmission.

Modulating Valves

824K-825K Speed and Direction Valves



Illustration 3g03661194
824K-825K
(3) Modulating valves for speed control
(4) Modulating valves for direction control

The location for the six modulating valves on the lower left side of the transmission. Four modulating valves (3) are for speed control. Two modulating valves (4) are for direction control.

826K Speed and Direction Valves



Illustration 4g03661195
826K
(3) Modulating valves for speed control
(4) Modulating valves for direction control

The location for the five modulating valves on the lower left side of the transmission. Three modulating valves (3) are for speed control. Two modulating valves (4) are for direction control.

Note: The 826K machine does not have a third speed gear.

Torque Converter Lock Up Clutch Valve



Illustration 5g03661467
(13) Modulating valve for the lockup clutch

The modulating valve for the lockup clutch is located on the right side of the torque converter, below the pump drive housing.

Oil Pump (Transmission)



Illustration 6g03661224
(5) Oil pump (transmission)

The oil pump for the transmission is attached to the end of the steering pump.

Screen (Magnetic)



Illustration 7g03661240
(6) Screen (suction)

The screen for the transmission oil is located on the lower right side of the transmission.

Power Train Oil Filter



Illustration 8g03661248
(7) Power Train Oil Filter

The power train oil filter is located on the left side of the machine below the platform in the hydraulic service center.

Transmission Input Gear Transfer Case



Illustration 9g03661254
(8) Transmission Input Gear Transfer Case

The transmission input gear transfer case is attached to the transmission. The input gear transfer case houses the torque converter. The input gear transfer case transfers power through gearing to drive oil pumps.

Transmission Output Gear Transfer Case



Illustration 10g03661258
(9) Transmission Output Gear Transfer Case

The transmission output gear transfer case is connected to the front of the transmission. The transmission output gear transfer case houses gearing the transfers power from the transmission to output shafts.

Axles



Illustration 11g03661269
(10) Front Axle
(11) Oscillating Axle (Rear)

Transmission Oil Cooler



Illustration 12g03661270
(12) Oil cooler

The oil cooler is located on the left side of the engine.

Caterpillar Information System:

824K Wheel Dozer, 825K Soil Compactor and 826K Landfill Compactor Machine Systems General Information (Power Train System)
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