6.
SEAL SURFACE CONDITION —
Carefully inspect polished
surface of shaft where the seal makes contact. If the seal
surface shows any sign of a nick, scratch, spiral swirl or
groove, the shaft should be replaced or refurbished to
prevent leakage of the lubricant. (In many instances the seal
surface can be restored by use of a thin wall wear sleeve.
Check with your local seal supplier and follow the
manufacturer’s instructions for installing the wear sleeve).
7.
SEAL INSTALLATION
CAUTION:
Protect seal lips from sharp edges of the keyway
by wrapping thin strong paper around the shaft and coating
the paper and seal lips with grease before sliding the seal on
or off the shaft. Do not expand the seal lips more than .030"
(0,75 mm) diameter.
a) Install seals into seal cages where cages must be removed
from drive:
4407-4507; All types, H.S. seals.
4407 JF & JSC; L.S. seals (output side).
4608; All types, H.S. & L.S. seals.
Coat O.D. of seal with Permatex #3 or equivalent
sealant. Position seal squarely in seal cage with spring
loaded lip toward drive. Drive or press seal into cage
using a flat faced tool until seated. If drive was not
disassembled, select new shims(Ref. #31 or 24, Sizes
4407-4507; Ref. #39 or 23, Size 4608) from shim kit,
Ref. #100, to match those removed in Step 5.
If drive was disassembled, install the complete seal cage
shim pack (Ref. #31 or 24, 39 or 23). Carefully slip seal
cage with seal over the shaft. Replace fasteners and cross
tighten to torques listed in Table 14, Section III. Reset axial
float per instructions in Section III, Page 21.
b) Install seals into seal bores where seal cages may remain
attached to housing:
4407 JF & JSC; L.S. seals (input side).
4407-4507JR; L.S. seals (input & output sides).
4415-4507JF; L.S. seals (input & output sides).
Coat O.D. of seal with Permatex #3 or equivalent
sealant. Carefully slip seal over shaft and position
squarely in seal bore with spring loaded lip toward drive.
Use a cylindrical square faced tool to drive or press seal
into bore until outer seal wall is seated 0.14" (3,5 mm)
inside the seal bore outer wall.
CAUTION:
DO NOT seat seal against bearing; a
shoulder is NOT provided for stopping the seal. Measure
seal axial runout with a dial indicator mounted on the
shaft. If the seal axial runout is more then 0.010" (0,25
mm), tap high side of seal with installation tool until seal
axial runout is 0.010" (0,25 mm) or less.
8.
DRIVE REPAIR IS COMPLETE —
Review instructions in
Section I for reassembly of drive onto driven shaft.
Drive Disassembly — Continued
9. When seals, Ref. #21 & 23 (4407-4507); Ref. #21, 37 &
64 (4608), are to be reused (Replacement is
recommended), wrap the input shaft keyway and output
shaft threads with masking tape or light weight kraft paper to
protect seal lips during disassembly. Cover wrapping with a
light coat of grease.
10. Remove backstop parts if so equipped. For Sizes 4407,
4415J14 & 4507J14 remove cover Ref. #19, backstop Ref.
#5A and appropriate spacers & retaining rings from
backstop cage. Re-install cover and finger tighten fasteners.
For Sizes 4415J25 & 4507J25, remove entire backstop
cage. Disassemble retaining rings and remove backstop.
Re-install cage and cover without the backstop and finger
tighten fasteners. (For all drives, note direction of rotation of
input shaft for proper reassembly.)
11. Lay drive on bench with input shaft up. Remove housing
cover fasteners, Ref. #33, Sizes 4407-4507; Ref. #13, Size
4608. Screw eyebolts into tapped holes (5/8 - 11UNC,
Sizes 4407-4507; 3/4 - 10UNC, Size 4608) diagonally
opposite in cover plate. Eyebolts can be used to jack the
cover off the dowels. Attach hoist cables and lift cover plate
off housing base.
12. Remove the shaft assemblies (J05 = 3A & 4A, J14 or J25 =
1A, 2A & 4A) from output housing, Ref. #10, using eye bolts
for the high speed shaft and low speed pinion assemblies (3/8
- 16UNC Sizes 3407 - 3507; ½ - 13UNC Size 4608). All low
speed shaft assemblies can be lifted by slinging through holes
in the gear web.
13. Turn housing on either narrow side. If tapered roller
bearings are being replaced, remove end covers and seal
cage from output side of drive and drive bearing cups
through the bores. Remove bearing cups from the housing
cover in the same manner.
14. Drive seals out from base and cover bores and seal
cages if replacement is indicated. Remove gasket
material, seal compound and any accumulated foreign
matter from seal joints, bores and adjacent sealing
surfaces. Use a solvent to clean out the housing covers
and shaft assemblies.
15. If drive is equipped with an internal backstop, check
the shaft surface and the backstop sprags (inside
diameter) for signs of wear. If either component shows
evidence of wear, both should be replaced (Assemblies
Ref. #1A and 5A). Also refer to Step 6 for inspection of
seal surfaces.
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
Owners Manual
•
Quadrive Shaft Mounted Drives
(Page 12 of 56)
Sizes 4407/M4407-4608/M4608
