5 Maintenance
Study the instructions carefully.
The items refer to the parts list and service kits section.
Always use Alfa Laval genuine spare parts. Replace seals if necessary.
Lubricate the rubber seals before fitting them.
5.7 Assembly of actuator
Step 1
Please see drawing when reassembling according to steps 2
to 5 on this page.
Note! The actuator is maintenance free but repairable.
Step 2
1. Fit guide ring (6) and o-ring (5).
Note! Not on actuator 3:
2. Fit o-rings (7 and 9). Place upper piston (8).
3. Fit stop (4).
4. Tighten screws (2). (Secure with glue)
Step 3
1. Place spring assembly (10).
2. Fit o-ring (19) and guide ring (18). Mount distance spacer
(11),mainpiston(17)andinnerstem(27).
Step 4
1. Fit spring assembly (14).
2. Fit o-ring (28) in piston rod, fit o-rings (33 and 31) and guide
ring (32) in lower piston and fit o-rings (20, 22 and 23) in
bottom.
3. Fit piston rod (29), lower piston (30) and bottom (21).
4. Mount the three parts.
Step 5
1. Fit retaining ring (24).
2. Fit cover disk (25).
3. Mount intermediate piece (37) on actuator.
4. Fit and tighten nuts (36) and washers (35).
35
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