0150 - Leak test of the vacuum shut off Engines 601, 602.91, 603.91 (note deviations for off-road vehicles) · ra07016010150x · Mercedes-Benz WIS

07.1-150 Checking vacuum shut-off for leaks

Job no. of Job Texts and Work Units or Standard Texts

and Flat Rates 07-8222 and 8225

1st version

0150 - Leak test of the vacuum shut off
Engines 601, 602.91, 603.91 (note deviations for off-road vehicles)

A	Partition panel
c	Remaining users
e	To brake booster

1	Injection pump
6	Vacuum unit (stop)
61b	Choke 0.5 mm orifice diameter
61c	Valve glow starter switch
61d	Cam glow starter switch (valve open)
67	Vacuum pump

Glow starter switch	turn to position "2".
Vacuum tester (019)	connect to suction line "brown" and apply vacuum of 400+50 mbar (max. pressure drop 6 mbar/min). Turn glow starter switch to position "0", the stop lever goes down or in stop position.
Vacuum tester (019)	connect to vacuum unit (6) and apply vacuum of 300+50 mbar (max. pressure drop 5 mbar/min).

2nd version
Production breakpoint as of July 1987.

A	Partition panel
c	Remaining users
e	To brake booster

1	Injection pump
6	Vacuum unit (stop)
61c	Valve glow starter switch
67	Vacuum pump
140	Check valve/main vacuum line

Glow starter switch	press to position "2".
Vacuum tester (019)	connect to suction line "brown" and apply vacuum of 400+50 mbar (max. pressure drop 6 mbar/min). Turn glow starter switch to position "0", the stop lever goes down or in stop position.
Vacuum tester (019)	connect to vacuum unit (6) and apply vacuum of 300+50 mbar (max. pressure drop 5 mbar/min).

Permissible loss of vacuum mbar/min


Model	124, 201
Entire system at 400+50 mbar vacuum	61)
Individual parts at 300+50 mbar vacuum	51)

1) Maximum pressure drop

Special tool

Checking

-------------------------------

1 Turn ignition key on glow starter switch to

position "2".

2 Pull suction line (brown) from connector (arrow).

Model 124

Model 201

Vacuum supply directly from check valve of main

vacuum line.
Models 124 and 201 as of July 1987

3 Connect tester and apply vacuum of 400+50 mbar.

If the display on the pressure gauge fails to change, the valve for the glow starter switch is leaking.

If a vacuum drop of more than 6 mbar/min occurs on the pressure gauge, the valve (61c) on the glow starter switch is leaking.

Caution!
Before replacing the valve for the glow starter system and the vacuum unit of the injection pump, check hose lines and connections.

4 Renew valve on glow starter switch.

5 Turn ignition key on glow starter switch to

position "0".

If a vacuum drop occurs on the pressure gauge, the vacuum unit or the valve may be leaking.

6 In this case, disconnect tester from suction line (brown).

7 Pull control line (brown/blue) from connector (arrow).

Model 201

Standard version and 

Model 201

 California version

Model 124

Standard version

8 Connect tester to connector and apply vacuum of 300+50 mbar.

If a vacuum drop of more than 5 mbar/min occurs on the pressure gauge, the vacuum unit of the injection pump is leaking.

Caution!
Before replacing the vacuum unit, check hose lines and connectors.

9 Renew vacuum unit (07.1-220).

0150 - Leak test of the vacuum shut off Engines 601, 602.91, 603.91 (note deviations for off-road vehicles)

Odkazované dokumenty