Pittsburgh 93980 User manual

BEARING PULLER / SEPARATOR SET
ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright © 2006 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions and replacement parts, please call 1-800-444-3353
Due to continuing improvements, actual product may
differ slightly from the product described herein.
93980

SKU 93980 For technical questions, please call 1-800-444-3353 Page 2
Specifications
Item Description
Bearing Splitter Sizes 2 and 3 inches
Push-Puller Legs 2 sets with 2 extension legs each, 4 and 5
inches
Yoke 6 inch with center adapter
Hex Drive Lead Screw 7 inch x 17 mm (drive) x 14 mm (14 TPI
Acme Thread)
Weight 10.6 lbs.
Save This Manual
You will need the manual for the safety warnings and precautions, assembly
instructions, operating and maintenance procedures, parts list and diagram. Keep
your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep the manual and invoice in a safe and dry place for future reference.
Safety Warnings and Precautions
WARNING: When using tool, basic safety precautions should always be fol-
lowed to reduce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1. Keep work area clean. Cluttered areas invite injuries.
2. Observe work area conditions. Do not use machines or power tools in damp
or wet locations. Don’t expose to rain. Keep work area well lighted.
3. Keep children away. Children must never be allowed in the work area. Do not
let them handle machines, tools, or extension cords.
4. Store idle equipment. When not in use, tools must be stored in a dry location
to inhibit rust. Always lock up tools and keep out of reach of children.
5. Use the right tool for the job. Do not attempt to force a small tool or attachment
to do the work of a larger industrial tool.There are certain applications for which
this tool was designed. It will do the job better and more safely at the rate for
which it was intended. Do not modify this tool and do not use this tool for a
purpose for which it was not intended.
6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically non-conductive clothes and non-skid
footwear are recommended when working. Wear restrictive hair covering to
contain long hair.
7. Do not overreach. Keep proper footing and balance at all times. Do not reach
over or across running machines.

SKU 93980 For technical questions, please call 1-800-444-3353 Page 3
8. Maintain tools with care. Keep tools sharp and clean for better and safer
performance. Follow instructions for lubricating and changing accessories.
9. Stay alert. Watch what you are doing, use common sense. Do not operate any
tool when you are tired.
10. Check for damaged parts. Before using any tool, any part that appears damaged
should be carefully checked to determine that it will operate properly and perform
its intended function. Check for alignment and binding of moving parts; any
broken parts or mounting fixtures; and any other condition that may affect proper
operation. Any part that is damaged should be properly repaired or replaced by
a qualified technician.
11. Replacement parts and accessories. When servicing, use only identical
replacement parts. Use of any other parts will void the warranty. Only use
accessories intended for use with this tool. Approved accessories are available
from Harbor Freight Tools.
12. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgment or reflexes
are impaired while taking drugs. If there is any doubt, do not operate the tool.
15. Always wear ANSI-approved eye protection during use.
Product Specific Safety Precautions
1. Be certain that the separator jaws are evenly set between bearing halves before
attempting to separate.
2. Lead Screw (5) should be centered on the shaft where the bearings are being
pulled to avoid damaging shaft or bearing housing.
3. Avoid pinching or scraping the bearing shaft by securely (and squarely) placing
the Jaws around the bearing housing.
4. Use care when removing the Lead Screw (5) from the Case to avoid damaging
the threads. Pry up from the ends of the Lead Screw.
Warning:The warnings, cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions and situations that may occur. It
must be understood by the operator that common sense and caution are fac-
tors which cannot be built into this product, but must be supplied by the opera-
tor.
Unpacking
When unpacking, check to make sure that all the parts are included. Refer to the
Parts Photo and Parts List at the end of this manual. If any parts are missing or
broken, please call Harbor Freight Tools at the number on the cover of this manual.

SKU 93980 For technical questions, please call 1-800-444-3353 Page 4
Operation
Pulling Bearings off Shaft
1. Select the proper size Bearing Separator Jaw (2.2”~3.0” #2 or 2” #14) for the
bearing size being removed from the shaft.
2. Loosen the Separator Jaw Nuts (3) sufficiently to allow the jaws to catch
behind the bearing housing.
3. Using a wrench (not supplied) begin to (evenly) tighten the Nuts (3) until the
jaws are securely set behind the bearing housing.
4. Screw in both Extension Screws of the same length (5” - 4 and 12, or 4” - 6
and 9) into the Bearing Separator Jaws as shown below.
Note: Do not use Extension Screws of different lengths.
5. Place the 6 inch Yoke (16) over the Extension Screws and tightly secure with
Washers (7) and Nuts (3).
6. Screw in Lead Screw (5) into the Yoke (16) until it touches the center of the
shaft where the bearings are mounted.
7. Using a wrench, turn the Lead Screw (5) clockwise until the bearing housing
begins to move off the shaft.
Continue turning the Lead Screw until the bearing housing is off the shaft.
8. Remove the Lead Screw (5) by turning it counterclockwise.
9. Remove bearing housing.
Bearing Separator
Jaw (2.2”~3.0” # 2
or 2” # 14)
Nuts (3)
Shaft
Bearing Housing
Extension Screws (5” - 4
and 12, or 4” - 6 and 9)
6 inch Yoke (16)
Lead Screw (5)
Nuts (3)
Washer (7)

SKU 93980 For technical questions, please call 1-800-444-3353 Page 5
Separating Bearing Housings
1. Select the proper size Bearing Separator Jaw (2.2”~3.0” # 2 or 2” # 14) for the
bearing size being separated. Refer to the illustration below.
2. Loosen the Separator Jaw Nuts (3) sufficiently to allow the jaws to catch
between each bearing housing.
3. Using a wrench (not supplied) begin to tighten Nuts (3) until the jaws are
securely set between the bearing housings.
4. Screw in the selected Extension Screws (5” - 4 and 12, or 4” - 6 and 9) as
shown below.
The Extension Screws allows the user to grip them and add stability while
tightening Nuts (3).
5. Continue tightening Nuts (3) until the bearing housings are separated.
When the bearing housings are separated, remove the Bearing Separator
Jaw.
Caution: Overtightening Separator Jaw Nuts may damage bearings.
Maintenance
1. Wipe off components of the Bearing Separator Set of all grease and dirt.
2. Store all components in the plastic Case, and place in a clean and dry
location.
Bearing Separator
Jaw (2.2”~3.0” # 2
or 2” # 14)
Nuts (3)
Bearing Housing
Extension Screws
Extension Screws

SKU 93980 For technical questions, please call 1-800-444-3353 Page 6
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM
IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE
BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR
THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT,
THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS
AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT
OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION
OF REPLACEMENT PARTS THERETO.
NOTE: Some parts are listed and shown for illustration purposes only
and are not available individually as replacement parts.
Parts List
Part No. Description Qty
1 Screw, M12 x 1.25 male
threads
2
2 Bearing Separator Jaw,
2.2”~3.0” capacity (2 half)
1
3 Nut, M12 x 1.25 4
4 5” Extension Screw, male and
female threads, 3/8”-16
2
5 Lead Screw 1
6 4” Extension Screw, male and
female threads, 3/8”-16
2
7 Washer 2
8 Nut, 3/8”-16 2
9 4” Extension Screw, male
threads, 3/8”-16
2
10 Washer 2
11 Nut, 3/8”-16 2
12 5” Extension Screw, male
threads, 3/8”-16
2
13 Screw, M10 x 1 male threads 2
14 Bearing Separator Jaw, 2”
capacity (2 half)
1
15 Nut, M10 x 1 4
16 6” Yoke Adapter 1
17 Case, Blow Mold 1

SKU 93980 For technical questions, please call 1-800-444-3353 Page 7
Parts Photo
LIMITED LIFETIME
WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its Pittsburgh products meet high quality and durability
standards, and warrants to the original purchaser that this product is free from defects in materials and
workmanship for the life of the product. This warranty does not apply to damage due directly or indirectly to
misuse, abuse, negligence or accidents; repairs or alterations outside our facilities; or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special or
consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation
of incidental or consequential damages, so the above limitation or exclusion may not apply to you.THIS
WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation charges
prepaid. Proof of purchase date, and an explanation of the complaint must accompany the merchandise. If our
inspection verifies the defect, we will either repair, or replace the product at our election or we may elect to
refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return
repaired products at our expense, but if we determine there is no defect, or that the defect resulted from
causes not within the scope of our warranty, then you must bear the cost of storing, and returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-33533491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-33533491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]