Note: The detergent intake
comprises a detergent metering
valve, a detergent non-return
valve and an injector nozzle in the
high-pressure port.
The injector must also be
examined
if faults arise
in the detergent intake.
•
Disconnect detergent intake
hose from metering valve.
•
Pull split pin (1) out of adjusting
knob (2).
•
Remove adjusting knob (2).
•
Unscrew banjo bolt from safety
control block. Ensure that the
spring and ball of the non-return
valve are not lost in the process.
•
Remove O-ring (1) from banjo
bolt.
- Pull banjo bolt out of metering
valve.
- Clean and examine all parts,
replace if necessary.
- Clean valve seat in safety control
block.
Reassemble parts in reverse order.
- Fit valve ball in banjo bolt.
•
Fit valve spring with narrow end
facing ball.
- Align metering valve so that
intake connector points back to
intake hose.
- Screw banjo bolt into safety
control block and tighten
securely.
6.6
Detergent metering and
non-return valve
621RA090 KN
1
621RA089 KN
1
2
621RA088 KN
621RA091 KN
621RA084 KN
RE 140 K, 160 K
13