Checking modulating pressure · ar2760t1130ac · Mercedes-Benz WIS

AR27.60-T-1130AC

Checking modulating pressure

27.10.09

TRANSMISSION 721.108 /109 /141 /151 /181 /182

T27.10-0007-01

Pressure measuring points

1 Primary pressure (PH)

2 Throttle pressure (PD1)

3 Pressure upstream of converter (PD2)

4 Pressure downstream of heat exchanger (PD6PD7)

5 Retarder pressure (PR3)

6 Retarder control pressure (PRR3)

T27.10-0008-01

Pressure gauge connection

	Checking
Danger!	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
Danger!	Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid	Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
1	Check oil level	 If necessary, perform oil change.
	Automatic transmission - oil and filter change		AP27.00-T-2702A
2	Remove the screw plug (1-6) to match the pressure test	 Remove screw plug to match the pressure to be measured (1, 2, 3, 4, 5, 6). Never remove 2 screws at the same time.  To perform the test the transmission must be at operating temperature (temperature of oil approx. 80 - 90 °C ), and the oil level and oil quality must be OK.
3	Connect pressure gauge		*123589042100
			*123589042102
4	Carry out pressure test	 The specified values for each of the pressures to be measured are assigned to specific operating conditions.
		Pressure measuring table	AR27.60-T-1130-01AC
5	Disconnect pressure gauge		*123589042100
			*123589042102
6	Screw-in screw plug	 Replace sealing ring.
			*BA27.10-N-1004-03A

 Oil pan, automatic transmission

Number	Designation		Transmission 721.141


BA27.10-N-1004-03A	Screw plug for pressure gauge connection	Nm	12

123 589 04 21 02

Connector

Tester

123 589 04 21 00

ap2700t2702a
ar2760t113001ac
as0000z000201a Fare for personskade på hud og øjne ved håndtering af varme eller glødende genstande
as0000z001301a Fare for kvæstelser på hud og øjne på grund af sprøjtende hydraulikvæske, som erunder højt tryk. Forgiftningsfare ved indtagelse af hydralikvæske