gf2757p2001b

Oil pump, basic function

Typ gf · téma 27.57 · verze 0101 · 2020-06-23

Platí pro: Model all with transmission 725.0/1

Není k dispozici v jazyce „cs“; zobrazeno v jazyce Angličtina.

Zařazení

Funkční skupina 2 Podvozek › 27 Automatická převodovka › 27.57 Olejové čerpadlo — Řada 900 (modely 9**) · Řada 902 (modely 9**) · Řada 904 (modely 918, 919, 924, 925, 938, 943, 957) · Řada 906 (modely 917, 918, 924, 953)

Platí také pro motory/převodovky: 139 ***, 254 ***, 256 ***, 272 ***, 276 ***, 282 ***, 457 9**, 541 9**, 542 9**, 608 ***, 700 4**, 700 420, 700 421, 700 422, 700 423, 715 3**, 715 5**, 722 6**, 722 9**, 724 ***, 724 0**, 724 033, 724 044, 724 045, 724 1**, 724 103, 724 114, 724 115, 724 120, 725 ***, 725 0**, 725 035, 725 037, 725 038, 725 085, 725 1**, 739 390, 739 391, 739 395, 739 396, 739 397, 739 398, 739 399, 740 698, 743 3**, 743 4**, 743 498, 746 971, 924 9**, 924 910, 925 9**, 926 9**

GF27.57-P-2001B

Oil pump, basic function

22.06.2020

Model

all with transmission 725.0/1

Oil pump, basic function

Overview
This document contains information on:

General

Location

FunctionGeneral
The oil pump in the automatic transmission is used for various tasks. It also transports oil for:

Coolant in the torque converter

Generation of compressive forces for multidisk brakes and the multiplate clutch

Working oil for gearshift

Lubricating oil for planetary gear sets The hydraulic pressure is set in the transmission control.
The oil pump was developed for optimum efficiency in order to minimize CO2 output.
Location
The oil pump is installed at the bottom of the transmission bell housing behind the torque converter.
The pump housing is part of the outer plate carrier of the multidisk brake.
Function
The primary pump is an oil pump according to the vane principle which is driven by a chain on the drive shaft.

Example illustration of oil pump

1

Transmission housing

2

Oil pump (primary pump)

3

Chain drive

4

Drive shaft

P27.57-2040-76