M3 Jackscrew Reassembly. Emerson Process Management G13, G01

Bettis P/N 124840E

Revision “B”

Page 25 of 46

3.6

M3 JACKSCREW ASSEMBLY

NOTE: 1.

This section is to be completed when the M3 jackscrew has been disassembled from the blind end cap or from the SR-M3 adapter plate (7-10).

NOTE: 2.

If the thrust bearing assembly has been disassembled from the M3 jackscrew stud then pre assemble the thrust bearing assembly to the M3 jackscrew stud per Section

3.6.5.

3.6.1

G01-M3 JACKSCREW REASSEMBLY TO M3 BLIND END CAP.

3.6.1.1 Apply a light coating of lubricant to threads of M3 assembly (5-50).

3.6.1.2 Screw M3 adapter (5-45) onto M3 assembly (5-50). NOTE: The smaller round end of the M3 adapter will install on the M3 assembly pointing to the outboard end of the

M3 assembly.

3.6.1.3 Position the M3 assembly with the inboard end of the M3 located with the needle bearing thrust washer assembly (5-100) up against or near the M3 adapter (5-45).

3.6.1.4 Lightly lubricate o-ring seal (6-20) and install into o-ring groove on the outboard side of the M3 adapter (5-45).

3.6.1.5 Insert M3 assembly (5-50) through inboard side of the M3 blind end cap (5-10).

3.6.1.6 Install the jackscrew adapter keeper (5-140) into the groove exposed on the outboard side of the M3 adapter (5-45).

3.6.1.7 Lightly lubricate o-ring seal (6-30) and install onto the outboard end of the M3 jackscrew assembly. Push the o-ring (6-30) down the M3 until it contacts the M3 adapter (5-45).

3.6.1.8 Install flat hex nut (5-60) onto M3 assembly (5-50). Rotate the flat hex nut (5-60) until it is up against the o-ring seal (6-30).

3.6.2

G2-M3 & G3-M3 JACKSCREW REASSEMBLY TO M3 BLIND END CAP.

3.6.2.1 Lightly lubricate o-ring seal (6-10) and install into o-ring groove in the M3 hole in the blind end cap (5-10).

3.6.2.2 Install the M3 jackscrew assembly (5-50) through the inboard side of the blind end cap (5-10).

3.6.2.3 Apply a light coating of lubricant to threads of M3 assembly (5-50).

3.6.2.4 Screw M3 adapter (5-45) onto M3 jackscrew assembly (5-50). NOTE: The small round end of the M3 adapter will install on the M3 assembly pointing to the inboard end of the M3 assembly.

3.6.2.5 Position the M3 assembly with the inboard end of the M3 located with the needle bearing thrust washer assembly (5-100) up against or near the M3 adapter (5-45).

Bettis P/N 124840E

Revision “B”

Page 26 of 46

3.6.2.6 Install two socket cap screws (5-120) through jackscrew adapter (5-45) and tighten into blind end cap (5-10).

3.6.2.7 Lightly lubricate o-ring seal (6-30) and install onto the outboard end of the M3 jackscrew assembly. Push the o-ring (6-30) down the M3 until it contacts the M3 adapter (5-45).

3.6.2.8 Install flat hex nut (5-60) onto M3 assembly (5-50). Rotate the flat hex nut (5-60) until it is up against the o-ring seal (6-30).

3.6.3

G01-SR-M3 JACKSCREW REASSEMBLY TO M3-SR ADAPTER PLATE.

3.6.3.1 Apply a light coating of lubricant to the threads of jackscrew assembly (7-40).

3.6.3.2 Install jackscrew adapter (7-45) onto the none bearing end of jackscrew assembly

(7-40).

3.6.3.3 Install jackscrew adapter (7-45) through M3 adapter plate (7-10).

3.6.3.4 Retain jackscrew adapter (7-45) with retainer ring (7-55).

3.6.4

G2-M3 & G3-SR-M3 JACKSCREW REASSEMBLY TO M3-SR ADAPTER PLATE.

3.6.4.1 Apply a light coating of lubricant to the threads of jackscrew assembly (7-40).

3.6.4.2 Install jackscrew adapter (7-45) onto the none bearing end of M3 assembly (7-40).

3.6.4.3 Install jackscrew adapter (7-45) through adapter plate (7-10).

3.6.4.4 Install two socket cap screws (7-120) through jackscrew adapter (7-45) and tighten into adapter plate (7-10).

3.6.5

M3 THRUST BEARING REASSEMBLY TO JACKSCRES ASSEMBLY.

3.6.5.1 Apply a coating of lubricant to the internal hole located on the inboard end of M3 assembly (5-40) / (7-50).

3.6.5.2 Install the wire retainer ring (5-90) / (7-90) into the internal hole of M3 assembly until retainer ring opens up into its groove inside the M3 assembly.

3.6.5.3 Pre-assemble the needle bearing thrust washer assembly (5-100) / (7-100) as follows:

3.6.5.3.1

3.6.5.3.2

Apply lubricant to one thrust washer and install onto bearing retainer

(5-110) / (7-110).

Apply lubricant to needle bearing and install onto bearing retainer

(7-110) and up against thrust washer installed in step 3.6.5.3.1.