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PUMP GP-PISTON 1690564 - Caterpillar


1690564 PUMP GP-PISTON Caterpillar parts 939C
Rating:
28
Alternative (cross code) number:
CA1690564
169-0564
1690564
Caterpillar 1690564 PUMP GP-PISTON
Weight: 258 pounds 117 kg.

Buy PUMP GP-PISTON 1690564 Caterpillar genuine, new aftermarket tractor parts with delivery
TRACK LOADER,

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$9 820

27 Jan 2017
MOVO Hydraulics

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17 Oct 2025

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18 Oct 2024

US: Super Brakes
[Front] Brake X Replacement Brake Rotors Kit | Advanced X Disc Rotors | for 2005-2006 Mitsubishi Outlander
Brake X Get The Right Fit: The front brake rotors kit are for 2005 2006 Outlander || 2 Piece Brake Rotors Kit Replacement: Each brake rotor kit comes with 2 heavy duty brake rotors that are built to exceed OEM Specification using quality materials for performance and long term use. || Heavy Duty Construction: Our brake rotors kit is made using heavy duty G3000 grade cast iron to offer just the right balance of performance, quality and affordability. It’s resistant to rust and corrosion, built for OEM specifications, and can be installed without any modifications. || Smoothened and Balanced: Our rotors are double disc smoothened and mill balanced to help prevent cracking and build up. The Brake X Rotors kit are engineered to elevate your driving experience and to back you up at your every turn. || Quality That Matters: Our car part replacement kits are engineered in Canada for the toughest environments with exact or more vane counts to meet OEM Specifications. They are backed by our satisfaction guarantee for any manufacturing defects so you know we have your back as go make every turns.
Number on catalog scheme: 6
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Compatible equipment models: 1690564:

TRACK LOADER  939C   Caterpillar

Information:

The above illustration shows the propulsion system operating under the following conditions:
The parking brake switch is in the OFF position.
The propulsion mode is set to LOW.
The machine is traveling in the forward direction.When the parking brake switch is in the OFF position, interlock solenoid (19) is energized. In this case, the interlock valve shifts, and charge oil is directed to parking brake piston cavities (1) and (8). The charge pressure overcomes the piston spring force, and the parking brakes are released. Charge oil is also sent to the direction control spools for rotating group (18) and (21).When the propulsion lever is moved into the forward range, the direction control spools shift. In this case, charge oil is directed into the forward side of the servo pistons. The pressure in the forward side of the servo pistons causes the pistons to move. This movement changes the angle of the swashplate in rotating groups (18) and (21). The farther the propulsion lever is moved forward, the greater the swashplate angle. This increase in swashplate angle causes a greater oil flow from the propulsion pump.Supply oil from axle rotating group (18) flows to the following locations:
The forward side of axle motor (3)
The forward side of flushing spool (6)
Forward combination valve (17)
Port "MA" of propulsion test manifold (24)The pressure differential between the forward and reverse sides of axle motor (3) causes the motor to turn.After turning axle motor (3), oil at a reduced pressure flows to the following locations:
The reverse side of flushing spool (6)
Reverse combination valve (16)
The reverse side of axle rotating group (18)
Port "MB" of propulsion test manifold (24)Supply oil from drum rotating group (22) flows to the following locations:
The forward side of drum motor (9)
The forward side of flushing spool (12)
Forward combination valve (22)
Port "MC" of propulsion test manifold (24)The pressure differential between the forward and reverse sides of drum motor (9) causes the motor to turn.After turning drum motor (9), oil at a reduced pressure flows to the following locations:
The reverse side of flushing spool (12)
The reverse side of drum rotating group (21)
Reverse combination valve (23)
Port "MD" of propulsion test manifold (24)The orifices in propulsion test manifold (24) modulate large pressure differences by allowing oil to transfer between the axle and drum drive circuits. In effect, the balance orifices act as a "hydraulic differential". In the event of potential spin-out, pressures will develop independently in each loop. As long as loop pressures remain below relief pressure setpoints, drive speed will remain fairly equal between the axle and drum.Inside rotating group (18) and (21), supply oil acts against the relief valve in the corresponding forward combination valve (17) and (22). The relief section of these combination valves limits the pressure in the circuit to 35 500 1500 kPa (5149 218 psi). The makeup section of the valves allows charge oil to flow into the low-pressure circuit. The charge oil replenishes the oil lost to internal leakage and loop flushing.As long as pressure in the forward circuit is

Caterpillar parts catalog:

Caterpillar parts catalog
939C Track Loader Hydrostatic Drive 6DS00001-UP (MACHINE) POWERED BY 3046 Engine


Parts pump Caterpillar catalog:

1476927 PUMP GP-CHARGE
914G, 939C, IT14G, IT14G2
1455291 PUMP GP-CHARGE
939C, D4C III, D5C III
1068263 PUMP GP-WATER
933, 933C, 939, 939C, D3C III, D4C III, D5C III
1076819 PUMP AS-WASHER
65E, 75E, 85E, 933, 933C, 939, 939C, 95E, D3C III, D4C III, D5C III
1131141 PUMP AS-OIL
236B, 236B3, 242B3, 246C, 252B, 252B3, 256C, 257B3, 259B3, 262C, 262C2, 267B, 268B, 272C, 277C, 277C2, 279C, 279C2, 287C, 287C2, 289C, 289C2, 297C, 299C, 3044C, 315, 315B, 315C, 317B LN, 318B, 906, 90...
1072473 PUMP AS-WATER
3044C, 933, 933C, 939, 939C, D3C III, D4C III, D5C III
0952286 PUMP-FUEL PRIMING
307, 307B, 308C, 315, 315B, 315C, 317B LN, 318B, 933, 933C, 939C, D3C III, D3G, D4C III, D4G, D5C III, D5G, E120, E140, E70, E70B
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