Forbes Marshall FMPP30, Руководство по установке и обслуживанию, Страница: 20 / 24

7.3.2 Procedure to Maintain/Replace float assembly:
1. Follow steps 1 to 3 of section 7.3.1
2. Unscrew the float
(16)
from the float arm using appropriate spanner.
3. Screw the new float using Loctite 272 adhesive onto the threads.
4. Insert the whole assembly inside the pump body as described in steps 7 and 8
of section 7.3.1
7.3.3 Procedure to Maintain/Replace Exhaust valve seat & head assembly:
1. Unscrew all eight nuts (3) present on the cover (1) and lift the cover and
mechanism assembly from the pump body (15) .
2. Arrange the whole assembly onto the vice such that the internals are placed
on top and clamp the cover.
3. Remove the assembly nuts to free the whole assembly from the cover.
4. If required, remove the old gasket
(2) , and clean the gasket area before
replacing with a new one.
5. Unscrew the Exhaust valve head (9B) .
6. Clean the metal gasket and replace if required.
7. Fit the exhaust valve head and seat.
8. Now fit the PPPPU internal assembly onto the cover. Carefully engage the
exhaust valve onto the actuator disc (11) and screw the nuts.
9. Unclamp the cover and insert the whole assembly back inside the pump body.
While reinstalling the cover.
10. Tighten the cover nuts (3) .
7.3.4 Procedure to Maintain/Replace Inlet valve seat and head assembly:
1. Follow steps 1 through to 4 of section 7.3.3
2. Unscrew the Inlet valve head
(6) .
3. Clean the metal gasket and replace if required.
4. Fit the inlet valve head and seat.
5. Now fit the PPPPU internal assembly onto the cover
(1) . Carefully engage the
exhaust valve (9A) onto the actuator disc (11) and screw the nuts.
6. Unclamp the cover and insert the whole assembly back inside the pump body
(15). While reinstalling the cover.
7. Tighten the cover nuts (3) .
7.3.5 Procedure to Maintain/Replace the springs:
1. Unscrew all eight nuts (3) present on the cover (1) and lift the cover and
mechanism assembly from the pump body (15) .
2. Arrange the whole assembly onto the vice such that the internals are placed
on top and clamp the cover.
3. Remove the split pins.
4. Remove the washer and the springs
(19) from the linkage mechanism (17)
5. Clean the springs (19) and replace if required.
6. Put the washer and split pins back
7. Reassemble the whole mechanism following steps
7 and 8 of section 7.3.1
18 Pressure Powered Pump Package Unit with IJ and CRM485R