Ranpump RAN 3" G80-AX, Руководство по эксплуатации и техническому обслуживанию

Страница: 16 / 24

16
7.3 Air valve repair
Tools Required
- Torque wrench
- 5 mm allen key
- Z-ring pick
- Lithium-base grease (non-freezing silicone grease)
NOTE: Hold the air valve vertical position if the core is sliding with its own weight in the valve body,
valve z-rings must be changed.
1- Relieve the pressure.
2- Unscrew the bolts fixing the valve.
3- Remove the seal from the valve, then remove the two valve plates. You will see two taps at
the sides of the valve Dismantle valve taps.Push the taps with your finger until the valve core
comes out.
4- Valve core should move in the valve body a little bit tightly. If it moves loosely, the PTFE
rings must be worn. They must also be changed.
5- Make sure you do not damage the z-rings when inserting valve core into the valve body.
Before inserting the core in valve body, grease it slightly with a suitable oil. Do not use an
sharp tools and only use fingertip to place the core.
6- Valve core must lean against one of the taps. Otherwise, the core will not move. Please put
the two valve plates and seal back into position and re-place on the pump.
7- Tighten the screws applying the proper torque from the torque chart. (Fig. 7)
Figure 13a - Air valve repair