Removing and Installing Directional-Control Valve

Removing And Installing Directional-control Valve

Tools







Preliminary work

1. Remove complete heater.
2. Remove intake muffler.

Removing directional-control valve












1. Release connector -Arrow A- and pull off -Arrow B-







2. Loosen spring band clamp -1- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 -Arrows A- and slide it off the adapter -Arrow B-.
3. Pull hose off the line -Arrow C-.







4. Loosen spring band clamp -2- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 -Arrows A- and slide it off the adapter -Arrow B-.
5. Remove hose from the directional-control valve -Arrow C-.
6. Loosen spring band clamp -3- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 -Arrows A- and slide it off the adapter -Arrow B-.

7. Remove hose from the directional-control valve -Arrow D-.







8. Loosen spring band clamp -4- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 -Arrows A- and slide it off the adapter -Arrow B-.







9. Unscrew the fastening screw -5- and remove the clamp from the upper line -Arrow A-.
10. Unscrew both fastening screws -6-.
11. Lift directional-control valve out of bracket -Arrow B- and remove hose -Arrow C-.

Installing directional-control valve

NOTE:
- Before installing the directional-control valve, apply a suitable rubber lubricant to all adapters.
- To prevent the heater touching the body, align the water lines, hoses and spring band clamps accurately to the markings before fastening them.







1. Push the directional-control valve onto the water hose -arrow-.







2. Insert directional-control valve from above -Arrow A-, align to holder and screw down with both fastening screws -6-.
3. Push clamp onto upper line -Arrow B- and secure to holder with fastening screw -5-. Tightening torque 2.5 ftlb.







4. Align front hose to the marking.
5. Slide spring band clamp -4- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 onto the connection -Arrow A- and align with the marking on the hose.
6. Relieve the spring band clamp -4- -Arrows C- and secure the hose.
7. Push lower hose onto connection 2 of directional-control valve -Arrow B- and align to marking.
8. Slide spring band clamp -3- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 onto connection 2 of directional-control valve -Arrow B- and align with the marking on the hose.
9. Relieve the spring band clamp -3- -Arrow C- and secure the hose.







10. Push upper hose onto connection 3 of directional-control valve -Arrow A- and align to marking.
11. Slide spring band clamp -2- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 onto connection 2 of directional-control valve -Arrow A- and align with the marking on the hose.
12. Relieve the spring band clamp -2- -Arrows B- and secure the hose.







13. Push the hose onto the water line -Arrow A-.
14. Slide spring band clamp -1- using circlip pliers for spring band clamps, Cayenne hose connections NR.72-1 onto connection 2 of directional-control valve -Arrow B- and align with the marking on the line.
15. Relieve the spring band clamp -1- -Arrows C- and secure the hose.







16. Push on connector -Arrow A- until the locking tab -B- is felt to engage.

Subsequent work

1. Install intake muffler.
2. Install complete heater.