DE-STA-CO 662P User Manual

®

The Driving Force in Automation

SERVICE MANUAL

PARALLEL SERIES INDEX DRIVES

MODELS 250P, 387P, 512P, & 662P

“WARNING”

This is a controlled document. It is your responsibility to deliver this information to the end user of the CAMCO indexer.

Failure to deliver this, could result in your liability for injury to the user or damage to the machine.

For copies of this manual call your Customer Service Representative 800/645-5207.

“WARNING”

TABLE OF CONTENTS

Introduction................................................................................................................... 2

Warnings and Cautions ................................................................................................. 2

Oil Seal Removal............................................................................................................ 2

Spare Parts Kit Information ......................................................................................... 2

Disassembly ................................................................................................................ 2 , 3

Removing Top Housing.............................................................................................. 2 , 3

Cam Follower Inspection and Replacement ............................................................... 3

Removing Input Shaft ................................................................................................... 4

Removal of Output Shaft .......................................................................................... 4 , 5

Prior to Reassembly ...................................................................................................... 5

Installing Follower Wheel .............................................................................................. 5

Installing Cams ........................................................................................................... 5 , 6

Installing Output Shaft ................................................................................................. 6

Installing Input Shaft .................................................................................................... 6

Setting Cam Preload .................................................................................................. 6 , 7

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

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.

2

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.

3

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.

4

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.

5