Reassembly
9.3
Reassembly of the pistons
NOTICE
Before reassembling the pistons, check the required assembly code (see section 4.2).
1.
Grease the piston parts according to step 9.1.
2.
Install the piston bearings (7), piston rack bearing strips (6) and piston o-ring seals
(13) on the pistons. Ensure all these parts are kept in place during assembly.
Figure 25
Reassemble the pistons
6
7
3
6
7
13
3
13
3.
Align the pinion (see Figure 26) so that the teeth on the pinion will pick up the
pistons rack teeth when turning the pinion. Note the position of the pinion top slot
and the cam on the pinion top:
—
For standard or Spring-to-Close: Assembly Code CW
—
For reverse or Spring-to-Open: Assembly Code CC
4.
Slightly push the pinion inward to engage with the pinion.
—
Ensure that smooth movement and 90-degree operation can occur
without moving the pistons out of the actuator body.
—
For larger pistons, use a rubber mallet and slightly hitting the pistons
inward to engage with the pinion.
5.
When the pistons are moved 90° inwards (see figure 26), check that the pinion slot
on the pinion top is:
—
Perpendicular to the length centre line of the house for assembly code CW.
—
In line to the length centre line of the house for assembly code CC.
6.
If not, turn pinion to move the pistons outward until they disengage from the
pinion. Shift one tooth of the pinion, reassemble and check again.
32
September 2015
Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 6
Section 9: Reassembly
Summary of Contents for EL-O-Matic F-Series
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