Remove/install inlet check valve

AR43.30-T-0012A

Remove/install inlet check valve

8.6.11

 Danger!

Risk of injury caused by touching hot retarder and by scalding from hot retarder oil. Risk of injury to skin or eyes caused by retarder oil escaping under high pressure

Do not carry out any work unless retarder is switched off. Wear suitable protective clothing and safety glasses when working on the hot retarder.

AS43.30-Z-0001-01A

1

Switch off ignition

2

Detach the engine compartment paneling under the transmission

AR61.20-T-1105CA

3

Remove screw plug/guide (2)

4

Remove spring (3) and piston (4) from retarder housing



Check

5

Check the check valve (1)

 On the version with integral plastic sealing ring the check valve (1) must be replaced in event of a damaged plastic sealing ring.

Check screw plug/guide (2) with integrated vinyl ring for damage.

Check rubber lining of piston, guide and spring for signs of wear or damage.

If damaged or worn, install a new check valve (1).

6

Install in the reverse order

 Screw plug for check valve (2) (inlet)

*BA43.30-N-1017-01D

7

Install engine compartment paneling below transmission

AR61.20-T-1105CA

8

Conduct a road test

 Bleed retarder:

-If present and possible, switch off retarder foot control.

-Drive vehicle at 50 km/h.

-Switch on retarder in first brake stage 5 times for approx. 5 seconds each.

Number

Designation

Model 613
with code B10

BA43.30-N-1017-01D

Screw plug for check valve (inlet)

Nm

280