Backstop Installation — Sizes 4407/M4407 thru 4507/M4507
Introduction
The following instructions apply to INSTALLATION ONLY
of internal backstops in horizontal drives, Sizes 4407 thru
4507 double reduction.
WARNING:
If backstop is to be replaced, the high speed shaft
must also be replaced. Refer to instructions regarding high
speed shaft replacement.
Remove all external loads from drive before servicing drive or
accessories, and lock out starting switch of prime mover.
Lubricant
PETROLEUM BASED LUBRICANTS —
Use R & O type
lubricants which do not contain anti-wear (AW) additives if the
drive is equipped with an internal backstop.
CAUTION:
Do not use EP lubricants or lubricants with
anti-wear additives or lubricant formulations including sulfur,
phosphorus, chlorine, lead derivatives, graphite or
molybdenum disulfides in drives equipped with internal
backstops. Refer to Appendix A for proper selection of
petroleum based lubricants. Use of an improper lubricant will
contribute to premature wear or malfunction of the backstop.
SYNTHETIC LUBRICANTS —
Synthetic lubricants may be used
in drives with internal backstops operating in cold
temperatures, -30ºF to +50ºF (-34ºC to +10ºC) only. DO
NOT use synthetic lubricants in drives with backstops operating
above +50ºF (10ºC). Refer to Appendix A for proper selection
of synthetic lubricants.
Backstop Application
Backstops are designed to prevent reverse rotation or backrun
without backlash in applications such as conveyors, bucket
elevators, fans, rotary pumps and kilns. Backstops are not
approved for use on systems that are designed for handling of
people such as elevators, man lifts, ski tows and ski lifts. DO
NOT use a backstop as a substitute for a brake.
Indexing
DO NOT use the backstop for indexing applications. The
backstop is designed to prevent reverse rotation five times or
less in eight hours, with one minute or more in overrunning
direction between backstopping load applications. If
backstopping operations are more frequent, or the time
between operations is less than one minute, the backstop is
classified as an indexing device and must be referred to Falk.
Installation — Sizes 4407 thru 4507
1. Drain oil from the drive. If the backstop is being added to
an existing drive, remove and discard the original shaft
cover, Ref. #18, and fasteners, Ref. #37, Figure 1. Size
4407, remove and discard the four short studs and
replace with the longer studs, Ref. #38, provided in the
kit.
2. If existing backstop is being replaced, for Sizes 4407,
4415J14 & 4507J14, remove cover, Ref. #19, backstop
Ref. #5A, and appropriate spacers and retaining rings from
backstop cage. For Sizes 4415J25 & 4507J25, remove
entire backstop cage. Disassemble retaining rings and
remove backstop. For all drives, note direction of rotation of
input shaft for proper reassembly. Refer to Section II, Step 15
for shaft and backstop inspection.
3. Remove backstop, Ref. #5A1, from the kit and wipe off
excess lubricant.
The Falk Corporation, P.O. Box 492, Zip 53201-0492
378-102
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone : 414-342-3131
August 2004
Fax: 414-937-4359 e-mail: [email protected] web: www.falkcorp.com
Supersedes 6-92
®
a good name in industry
Quadrive Shaft Mounted Drives
•
Appendix B
Sizes 4407/M4407-4608/M4608
(Page 29 of 52)
REF. #1A3
PINION & SHAFT
REF. #18
SHAFT COVER
REF. #37
FASTENERS
Figure 1
REF. #30
GASKET
REF. #29
GASKET
REF. #38
FASTENERS
REF. #5A1
BACKSTOP
REF. #19
COVER
REF. #20
CAGE
REF. #5A2
SPACER
Figure 2
REF. #30
GASKET
REF. #20
BACKSTOP
CAGE
REF. #29
GASKET
REF. #38
FASTENERS
REF. #5A2
SPACER
REF. #5A4
KEY
REF. #5A1
BACKSTOP
REF. #19
COVER
Figure 3
