C.E. Niehoff & Co. C612: A9-169 Upgrade Bearing Kit Instructions - Manual

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A9-169 Bearing Upgrade Kit
Installation Instructions
C. E. Niehoff & Co.
BRUSHLESS ALTERNATORS
for C612 Alternator
This symbol is used to indicate
presence of hazards that can cause
minor property damage.
CAUTION
Figure 2 - C612 Assembly with Old-style Bearing
1. Remove the following anti-drive end parts from
the alternator:
a. Fan guard screws, grommets/grommet inserts,
and fan guard.
b. Fan nut, fan washer and fan - save fan washer
for reassembly. Discard fan and fan nut.
2. Remove anti-drive end housing:
a. Scribe marks across ADE housing and shell
to ensure proper position when alternator is
reassembled.
b. Remove ADE locknuts and housing (discard
locknuts).
c. Remove and discard O-ring from bearing bore.
3. Remove and discard anti-drive end bearing from
shaft using a bearing puller.
4. Remove and discard spiral ring seal from groove
in shaft.
CAUTION
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
Fan guard
(fan below)
Figure 1 - C612 Alternator
G
G
ADE
housing
5. Wind new spiral ring seal in groove on shaft
closest to rotor. Lubricate with Klüber Asonic ®1
HQ72-102 or equivalent.
8. Install fan and fan guard:
a. Install new fan on shaft. Fasten with fan
washer and new fan nut. Torque nut to
67.8 Nm/50 lb. ft.
b. Install fan guard. Fasten with new grommets/
grommet inserts and screws. Use a suitable
adhesive such as Loctite ® 222 on screws.
Follow adhesive manufacturer’s instructions.
Torque screws to 1.1 Nm/10 lb. in.
1 Loctite is a registered trademark of Loctite Corporation.
2 Asonic is a registered trademark of Klüber Lubrication.
Figure 3 - C612 Assembly with New-style Bearing
6. Re-install anti-drive end housing:
a. Install new O-ring in bearing bore of anti-drive
end housing. Lubricate with Klüber Asonic ®
HQ72-102 or equivalent.
b. Align scribe marks on shell and anti-drive
end, then lower ADE housing in position.
There will be a slight resis-
tance as spiral ring seal
enters bearing bore. Do not
force housing on shaft. Spiral
ring seal can be damaged by
too much pressure.
c. Secure anti-drive end housing with new
locknuts. Use a suitable adhesive such as
Loctite ®2 222 on studs and nuts. Follow ad-
hesive manufacturer’s instructions. Torque
screws to 5.1 Nm/45 lb. in.
7. Support drive end of shaft with ADE housing
facing up. Install new double-wide bearing in
position by pressing on inner race of bearing,
using suitable tool (such as CEN part no. A10-
102).