How to Order Parts ....................................................................................................... 7
Exploded Parts Drawing (250P & 387P) ................................................................... 8
Parts List (250P & 387P)................................................................................ 9,10,11
Exploded Parts Drawing (512P & 662P) ................................................................. 1 2
Parts List (512P & 662P).............................................................................. 13,14,15
Page 3
INTRODUCTION
SPARE PARTS KIT
This service manual pertains to the disassembly
and assembly of CAMCO’s Parallel Series Index
Drives models 250P, 387P, 512P, & 662P.
The manual is to be used in conjunction with the
General Service Manual which describes the
lubrication and general maintenance of CAMCO
Index Drives.
An exploded view of your specific Index Drive is
included in this manual. Also included is a complete
Bill of Materials for your convenience in identifying
and ordering spare or replacement parts.
Some users of Index Drives have the facilities and
trained personnel to accomplish service repair. You
must determine the extent to which intricate
servicing should be done in your facility. When in
doubt, CAMCO recommends that CAMCO trained
servicemen make the repairs.
WARNINGS AND CAUTIONS
Statements in this manual proceeded by the words
WARNING or CAUTION and printed in italics are
very important. We recommend you take special
notice of these during service or repair.
WARNING
Means there is the possibility of personal injury to
yourself or others.
CAUTION
Means there is the possibility of damage to the
CAMCO unit.
CAMCO offers a Spare Parts Kit for all CAMCO
index drive models CAMCO builds. These kits
include oil seals, bearings, shims and cam
followers. These are components that will most
likely require replacement during repair of your
index drive. CAMCO recommends a Spare Parts
Kit be purchased and kept on hand prior to any
disassembly of your CAMCO drive.
A complete list of components supplied in the
Spare Parts Kit can be found in the parts list
located in the rear of this manual. The asterisk
behind the item number indicates those parts
supplied with the Spare Parts Kit.
BEFORE STARTING
Before starting disassembly of your CAMCO unit
you should read and review the following
instructions. These provide important information
on parts and procedures necessary to successfully
complete your repair.
Comply with all Warnings and Cautions.
Read the “Trouble Shooting Guide” section of your
“General Service Manual” before disassembling
CAMCO units. CAMCO recommends returning
defective equipment for inspection and repair
whenever possible.
CAMCO uses Loc-tite to secure all screws and
setscrews. If you encounter a fastener that is
difficult to remove, apply heat to the screw and
remove while still warm.
OIL SEAL REMOVAL
The only repair possible without disassembly of the
indexer is replacement of oil seals. To remove oil
seals, drill a number of holes into the case of the
seal. The seal may then be removed with a pointed
tool. Be sure to remove all metallic chips created
during the drilling of removal holes. A new seal may
be installed as outlined in the “Oil Seal Installation
Recommendations” section of the “General Service
Manual”.
DISASSEMBLY
1. Remove all accessory equipment such as
clutches, reducers, sprockets, etc. If equipped
with a CAMCO R200 or R250 reducer, see
disassembly instructions pertaining to the
appropriate reducer prior to removal from unit.
2. Drain oil and flush unit with flushing solvent.
Retain any chips or broken pieces that you may
find. These may aid in diagnosis.
3. REMOVING TOP HOUSING
A. Match mark all input cartridges relative to
the housing. These must be replaced in the
same side and in the same angular position,
since they are eccentric.
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B. Remove the main housing screws. These
hold the upper and lower housings
together.
C. Remove all bearings cartridge capscrews
on the upper (smaller part) housing half.
D. Loosen the bearing cartridge capscrews on
the lower half.
E. Remove the upper housing section. Lightly
tap on the upper housing to aid in loosening
and removal.
F.Retighten bearing cartridge capscrews and
rotate the input shaft with a handwheel and
inspect all parts for wear or damage.
4. CAM FOLLOWER INSPECTION AND
REPLACEMENT
If necessary, the cam followers can be replaced at
this stage without removing the input or output shaft
but you may find it necessary to remove the shafts
for ease of replacement. If so, see removal of input
and output shafts. The following steps should be
followed in either case.
A. Apply heat to the setscrews holding the
follower studs. They are secured with
Loctite. Remove the screws while they are
still warm.
B. Gently tap follower stud toward center of
indexer.
CAUTION! Be sure that the loose needles within the
follower do not fall into the unit.
C. Install new followers holding a complete
follower assembly in place. Drive the
follower stud through two flanges and
follower assembly , driving out the rubber
plug.
Install the stud from the center of the
follower wheel so that the screw notch does
not score the precision follower bores.
Be sure that the setscrews using the
recommended Loc-tite product. (See Torque
section of General Service Manual.)
Fig.1 Top housing removed.
NOTE:
1) Radial follower looseness should not
exceed .001.
2) Endplay (lack of preload) in input or output
shaft is not permissible.
Fig.2 Checking radial looseness.
Fig.3 Installing pin from center of wheel.
5. REMOVE INPUT SHAFT
A. Remove the input bearing cartridge
capscrews and gently tap the end of the
input shaft until the cartridge flange is
separated from the housing enough to
gently pry or pull the cartridge off. If desired,
tapped holes may be added to the flange
portion of the cartridge for jacking screws.
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B. After removal of the cartridge, tap the shaft
in the opposite direction, and remove the
other cartridge in the same manner.
NOTE: You must remove the input shaft prior to removal
of the output shaft.
Fig.4 Removing input shaft.
6. REMOVAL OF OUTPUT SHAFT
A. Removal the large output oil seal as outlined
in the general statements at the front of this
section.
B. Carefully removing the snap ring, from its
groove in the housing, using a snap ring
pliers.
C. Remove the output bearing cartridge
capscrews and gently tap the end of the
output shaft until the cartridge flange is
separated from the housing enough to pry
or pull the cartridge off. If desired tapped
holes may be added to the flange portion of
the cartridge for jacking screws.
D. Once the cartridge is removed, you must
remove the cup portion of the output
bearing that is still in the housing. This is
done by using a hammer and blunt
instrument (such as keystock) and gently
tapping on the backside portion of the cup
which extends above the housing,
alternating from side to side to prevent
binding, until the cup is free of the housing.
E. Now the output shaft can be lifted free of the
housing.
7. For replacement of bearings:
A. Use a wheel puller to remove the cone
portion of bearing from shafts.
B. Removal of bearing cup from cartridge: If
prying is not successful it may require
drilling of push off holes or fabrication of
pulling device.
8. CAMCO recommends that all remaining seals be
removed from the cartridges. To reuse seals is a
false economy since most damage occurs during
disassembly if the seal installation procedures
are not followed.
9. The cam and follower wheel are slip fit on the
shafts but there are several dowel pins, screws or
keys holding these parts. After removing the
capscrews, use an arbor press to remove cams
or follower wheel from shaft using caution not to
damage the parts.
Fig.5 Removing snap ring.
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Fig.6 Removing follower wheel fasteners.
B. Use arbor to press follower wheel onto
shaft. Be sure the fastener and dowel holes
line up. Coat shaft and bore with anti-seize
lubrication proir to pressing. If a heat gun is
available it is recommended the bore of the
follower wheel be heated prior to pressing.
C. Tighten socket head capscrews.
D. Reinstall output shaft spacers removed
during disassembly .
E. Use arbor to press bearing cones onto
shaft. Coat shaft and bearing bore with anti-
seize lubricant prior to pressing. If a heat
gun is available it is recommended the bore
of the bearing be heated prior to pressing.
2. INST ALLING CAMS
A. Use arbor to press cams onto shaft. Be sure
the fastener and dowel holes or key and
keyway line up. Apply anti-seize lubricant to
the cam bore and shaft prior to pressing. If a
heat gun is available it is recommended the
bore of the cams be heated prior to
pressing.
Fig.7.1 Pressing out shaft.
ASSEMBLY
PRIOR TO REASSEMBLY
Clean and deburr all parts before reassembly.
Follow tightening torque and Loc-tite
recommendations as outlined in the General
Service Manual.
1. INSTALLING FOLLOWER WHEEL
A. Install dowels in the back side of the flange
portion of the output shaft (to match up with
the precision holes in the follower wheel
during assembly).
™
Fig.7.2 Pressing in shaft (250P)
B. Loosely tighten cam mounting screws but
do not drive in dowel pins. This note does
not apply to the 250P OR 387P since they
are one piece cams fastened to the shaft
with keys.
C. Reinstall input shaft spacers removed
during disassembly .
D. Use arbor to press bearing cones onto
shaft. Coat shaft and bearing bore with anti-
seize lubricant proir to pressing. If a heat
gun is available it is recommended the bore
of the bearing be heated prior to pressing.
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3. Use an arbor to press the bearing cups into the
cartridges. Coat the outside of the cup and the
bore of the cartridge with an anti-seize lubricant
proir to pressing.
4. INSTALLATION OUTPUT SHAFT
A. Place the output shaft/follower wheel
assembly into the housing.
B. Install the output cartridge into the housing
and fasten with capscrews. Use the same
shims as on disassembly unless endplay
exists after completing steps C & D.
C. Tap the large output bearing cup into the
housing. First loosen the output cartridge
and press the cup flush with the backside of
the snap ring groove. Coat the outside of the
cup and the housing bore with anti-seize
lubricant prior to pressing.
5. INSTALLING INPUT SHAFT
NOTE: The output shaft must be installed prior to
processing.
A. Place the input shaft/cam assembly into the
housing.
B. Install the input shaft cartridges, aligning the
match marks made during disassembly . Use
the same shims as on disassembly . Loosely
install the cartridge mounting capscrews.
6. SETTING CAM PRELOAD
NOTE: When setting cam preload, follow steps “A”
through “F”.
A. Adjust the input (eccentric) cartridges until
the followers are parallel to the cam track
and preload the cam slightly . Use the dwell
area for this procedure (tighten cartridge
capscrews).
Fig.8 Installing output bearing cup
D. Install the snap ring and tighten the output
cartridge capscrews. Check the shaft for
endplay . There should be a small amount of
drag from preloading the bearing.
If endplay exists remove shimstock from
cartridge. In rare instances it may be
required to remachine the cartridges if all
shims have been removed and endplay still
exists.
Fig.9 Cams preloaded against followers.
CAUTION: Improper preload results in
excessive loading of the indexer. Backlash (lack
of preload) is also not permissible, especially in
dwell.
B . Apply “Prussian blue” to the entire track.
Adjust the two cam plates until the Prussian
blue shows a uniform pattern. Individual
adjustment of the 250P and 387P does not
apply since they are one piece cams.
C. Rotate the input to each dwell position and
verify that there is no looseness in dwell, If
there is looseness adjust the eccentric
cartridges to preload the mechanism in the
loosest dwell.
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D. Repeat procedure “C”.
E. Check for smooth action by turning the
input shaft. Check also the input shaft
endplay as described in procedure “4D”
- Installation of output shaft adjustment shims as required.
F. If satisfied, re-match mark the input
cartridges and remove the input shaft. Drill
and ream four dowel pin holes into the input
shaft using the cams as a jig. (If you are still
using the old input shaft or cams it will be
necessary to drill and ream new holes
approximately 90 degrees to the existing
dowel holes in the cam. DO NOT USE THE
EXISTING DOWEL HOLES. This note does
not apply to the 250P or 387P.
7 . Reinstall input shaft and apply “General
Electric silicone rubber RTV-6” on all sealed
surfaces, including the out cartridge.
8 . Reinstall the upper housing section using
Permatex Sealant between halves. Tighten
capscrews and install dowel pins.
9.Drill and dowel input cartridges to the
housing aligning the new match markings.
10. Install new oil seals as described in the
General Service Manual.
11. Fill Index Drive with the recommended oil
(see General Service Manual) to the level
indicator. Too high an oil level will cause no
damage. Too low a level may result in unit
failure.
HOW TO ORDER P ARTS
Please refer to parts list shown in this manual. This
parts list is for a standard Index Drive. If you feel
your drive is nonstandard or you are in doubt you
should contact CAMCO Customer Service at (847)
459-5200 and request a Bill of Material for your
specific unit based on serial number. CAMCO
maintains records on all units for a period of ten
years.
You may order parts per the standard Bill of
Material even if your unit is nonstandard. CAMCO’s
order entry people will review the closed file based
on the following information and supply you with the
correct part.
REQUIRED INFORMATION
1. Original purchase order number (if available)
2. Customer name (original purchaser of drive)
3. Model number (located on name plate)
4. Serial number (located in name plate)
5. Approximate date of purchase.
TO ORDER PARTS contact CAMCO “Order Entry
Department” Wheeling, Illinois
Phone (847) 459-5200 or FAX #847-459-3064
A.Describe the parts required and the 14 digit part
number as listed in the Standard Bill of Materials
of a Special Bill of Materials pertaining to your
unit. State if you are using a Standard or Special
bill of material.
B. Give as much of the above required information
as possible.
ON WARRANTY
Replacement parts CAMCO will send freight
prepaid via most practical means.
CAMCO will issue a “Returned Material
Authorization Number” (RMA#) for the return of
defective parts for inspection. CAMCO will bill
customer for repair parts. When inspection of
returned parts has been completed and determined
to be a warranty problem, CAMCO will issue a
credit to the customer for the repair parts and
freight charges.
ON NON-WARRANTY
Replacement or spare parts, with approved credit,
are sent F.O.B. our plant Wheeling, Illinois.
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250P & 387P
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PARTS LIST FOR 250P INDEX DRIVE (STANDARD CONFIGURATION)