15
7.0 ASSEMBLY AND DISMANTLING OF PARTS
WARNING:
Before service and maintenance always relieve the air and fluid
pressure.
This explanation refers to figures defined in part (7.0) line (12) fig. 14.
7.1. Ball check valve repair
Tools required
- Torque wrench
- 5 mm allen key
- 10 mm wrench
7.1.1 Dismantling
NOTE: To ensure proper seating, you should change the seats with
the ball check valves.
1-
Relieve the pressure in pump. Remove the hoses.
2-
Dismount the pump from the ground.
3-
Remove the upper elbow manifolds and bolts fixing them to the
main body using 5 mm allen key and 10 mm wrench.
4-
Remove the manifold o-rings, ball cages, valve balls and ball seats
from the pump cover.
5-
Turn the pump over. Remove inlet manifolds. Remove the o-rings,
ball cages and valve balls from the pump.
7.1.2.Re-assembly
1-
Clean all the parts and inspect for wear.
2-
You can re-assemble the pump in reverse order. Check valve balls
must be placed on the cages using their own weight.
3-
If assembled differently, the pump will not work.
4-
Tighten the screws applying the proper torque from the torque
chart. (Fig. 6)
7.2. Changing diaphragm
Tools Required
- Lithium-base grease (non-freezing silicone grease)
- 5 mm allen key
- 10 mm wrench
- 13 mm wrench x 2 Figure 11- check valve repair
- torque wrench
- Philips-head screwdriver
WARNING!
Transferred liquid enters air chamber of pump
when the diaphragm ruptures. Liquid can damage
the pilot valve o-rings and the air valve o-rings due
to its chemical behaviour. For this reason you must
check and replace (if needed) the o-rings while
changing the diaphragm. If only the diaphragm is
changed that will not constitute good maintenance
and you can have a pump problem soon.
Содержание B15-AX
Страница 22: ...22 Figure 14b Pump assembly scheme for RAN 1 2...