Emerson EL-O-Matic F Series - 8.6 Removing pinion

Disassem bly
8.6 Removing pinion
1. Remove the circlip (27) and thrust bearing (23) on top of the pinion assembly.
For sizes 950 to 4000 remove also the top pinion bearing (19).
2. Remove the pinion (18) by pushing it downwards. For Size 4000, remove the
backup ring (29), O-ring pinion top (21) the cam (24) and cam thrust washer (25)
through the main bore of the housing.
3. Remove the pinion O-ring seals (21/22) and the pinion bearings (19/20).
For Size 950 to 2500, remove also the backup ring (29).
4. Discard all of these parts.
Figure 25 Pinion Removal
27
23
27
23
Sizes 950, 1600, and 2500
Sizes 25 to 600
Size 4000
19
21
19
21
18
18
27
23
19
29 19
18
19
22
22
29 25
24
21
20
20
21
Table 12. Recommended circlip pliers according DIN 5254 (or equal) for shaft circlips.
Actuator
size
Pinion top
diameter
Pliers according
DIN 5254
Actuator
size
Pinion top
diameter
Pliers according
DIN 5254
12 16 mm 0.630" A1 950 65 mm 2.559 A3
25 - 100 22 mm 0.866" A2 1600 75 mm 2.953 A3
150 - 350 36 mm 1.417" A3 2500 95 mm 3.74 A4
600 55 mm 2.165" A3 4000 96 mm 3.78 A4
32
September 2017
Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 7
Section 8: Disassembly