Central Machinery 47990 User manual

RATCHETING CAR DOLLY – 2 PIECE
Model 47990
ASSEMBLY AND OPERATING INSTRUCTIONS
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at: http://www.harborfreight.com
Copyright 2002 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 please call 1-800-444-3353.

 Description
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 
PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures, parts list and as-
sembly diagram. Keep your invoice with this manual. Write the invoice number
on the inside of the front cover. Keep this manual and invoice in a safe and dry
place for future reference.
GENERAL SAFETY WARNINGS AND PRECAUTIONS
1. KEEP WORK AREA CLEAN AND DRY. Cluttered, damp, or wet work areas
invite injuries.
2. KEEP CHILDREN AWAY FROM WORK AREA. Do not allow children to handle
this product.
SKU 47990 PAGE 2
PRODUCT OVERVIEW
Car Dollies are designed for use as a pair to move a vehicle in confined
spaces such as auto showrooms, garages, and body shops. This package
includes two Car Dollies. The Car Dollies should only be attached to either the
two front or two rear wheels in order to swing one end of the vehicle around for
positioning.

5. USE EYE AND HAND PROTECTION. Wear ANSI approved safety impact eye
goggles and heavy-duty work gloves when using this product. ANSI approved
safety impact eye goggles and heavy-duty work gloves are available from Harbor
Freight Tools.
6. DRESS SAFELY. Do not wear loose clothing or jewelry, as they can become
caught in moving parts. Wear a protective hair covering to prevent long hair from
becoming caught in moving parts. If wearing a long-sleeve shirt, roll sleeves up
above elbows.
7. DO NOT OVERREACH. Keep proper footing and balance at all times to prevent
tripping, falling, back injury, etcetera.
8. INDUSTRIAL APPLICATIONS MUST FOLLOW OSHA REQUIREMENT.
9. STAY ALERT. Watch what you are doing at all times. Use common sense. Do
not use this product when you are tired or distracted from the job at hand.
10. CHECK FOR DAMAGED PARTS. Before using this product, carefully check that
it will operate properly and perform its intended function. Check for damaged
parts and any other conditions that may affect the operation of this product.
Replace or repair damaged or worn parts immediately.
11. REPLACEMENT PARTS AND ACCESSORIES: When servicing, use only identi-
cal replacement parts. Only use accessories intended for use with this product.
Approved accessories are available from Harbor Freight Tools.
12. MAINTAIN THIS PRODUCT WITH CARE. Keep this product clean and dry for
better and safer performance.
13. SERVICE AND MAINTENANCE: For your safety, service and maintenance
should be performed regularly by a qualified technician.
SKU 47990 PAGE 3
3. STORE IDLE EQUIPMENT. When not in use, tools and equipment should be
stored in a dry location to inhibit rust. Always lock up tools and equipment, and
keep out of reach of children.
4. DO NOT USE THIS PRODUCT IF UNDER THE INFLUENCE OF ALCOHOL OR
DRUGS. Read warning labels on prescriptions to determine if your judgement or
reflexes are impaired while taking drugs. If there is any doubt, do not attempt to
use this product.

SPECIFIC PRODUCT WARNINGS AND PRECAUTIONS
1. DO NOT EXCEED THE MAXIMUM LIFT CAPACITY FOR THIS PRODUCT
(1,200 POUNDS PER CAR DOLLY). Overloading a Car Dolly can cause
personal injury and/or property damage.
2. DO NOT USE THE CAR DOLLIES ON ANY ASPHALT SURFACE. Make sure
this equipment is used on a dry, oil/grease free, flat, level, CONCRETE surface
capable of supporting the weight of the Car Dollies, the vehicle being lifted, and
any additional tools and equipment. The concrete floor should have a minimum
thickness of 5”. The concrete must have a minimum strength of 4,000 PSI, and
should be aged at least 30 days prior to use. Do not use the Car Dollies on
concrete expansion seams or on cracked, defective concrete.
3. ALWAYS EXAMINE THE CAR DOLLIES FOR STRUCTURAL CRACKS,
BENDS, AND ANY OTHER CONDITION THAT MAY AFFECT THE SAFE
OPERATION OF THE CAR DOLLIES. Do not use the Car Dollies even if minor
damage appears.
4. MAINTAIN A SAFE WORKING ENVIRONMENT. Keep the work area well lit.
Make sure there is adequate surrounding workspace. Always keep the work
area free of obstructions, grease, oil, trash, and other debris.
5. THE CAR DOLLIES MUST BE USED IN PAIRS AT EITHER THE FRONT OR
REAR OF THE VEHICLE. THE CAR DOLLIES SHOULD NEVER BE USED
DIAGONALLY.
SKU 47990 PAGE 4
14. 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 applica-
tions 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.
15. WARNING: The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations that may occur. The
operator must understand that common sense and caution are factors, which
cannot be built into this product, but must be supplied by the operator.

11. CHECK TO MAKE SURE THE CAR DOLLIES ARE FREE TO MOVE, AND
THAT THERE ARE NO OBSTRUCTIONS IN THE WORK AREA.
12. CAUTION: USE THE CAR DOLLIES FOR MOVING VEHICLES IN INTERIOR
SITUATIONS. THE CAR DOLLIES ARE NOT DESIGNED FOR USE
OUTDOORS.
13. NEVER START, SIT OR DRIVE A VEHICLE WHILE IT IS RAISED ON THE
CAR DOLLIES.
14. USE EXTREME CAUTION WHEN APPLYING OR RELEASING A LOAD.
Never allow the load to suddenly release. Slowly and carefully apply and release
the load.
15. MAKE SURE TO READ AND UNDERSTAND ALL INSTRUCTIONS AND
SAFETY PRECAUTIONS AS OUTLINED IN THE MANUFACTURER’S
MANUAL FOR THE VEHICLE YOU ARE RAISING.
16. DO NOT USE THE CAR DOLLY’S AS A PERMANENT STAND FOR A
VEHICLE. Use the Car Dollies only when moving a vehicle. Then, immediately
remove the Car Dollies from the vehicle.
17. VEHICLE’S ENGINE MUST BE TURNED OFF AND PARKING BRAKE MUST
BE SET WHEN RAISING OR LOWERING THE VEHICLE, AND WHENEVER
THE VEHICLE IS RESTING ON THE DOLLIES.
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List (page 9) are
included. If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.
SKU 47990 PAGE 5
6. KEEP HANDS, FEET, AND BODY CLEAR OF THE MOVING PARTS OF THE
CAR DOLLIES WHEN IN USE.
7. MAKE SURE THERE ARE NO PASSENGERS IN THE VEHICLE BEING
MOVED. Ensure that all non-essential people keep a safe distance while the
vehicle is being moved.
8. DO NOT USE THE CAR DOLLIES TO LIFT OR SUPPORT A VEHICLE IN
ORDER TO PERFORM WORK UNDER THE VEHICLE.
9. DO NOT LEAVE THE VEHICLE UNATTENDED WHILE IT IS RAISED ON THE
CAR DOLLIES.
10. ALWAYS ENLIST SUFFICIENT MANPOWER TO MOVE THE VEHICLE
SAFELY.

OPERATING INSTRUCTIONS
NOTE: For additional information regarding the parts mentioned in the following instruc-
tions, refer to the Assembly Diagram (page 10).
To Position The Car Dolly:
1. Disengage the Release Lever (part #6) by moving it as far to the left as it will go.
Then, lift the Lock Knob (part #12) and turn it counterclockwise so that it is no
longer engaged in the slot. (See Figure A.)
2. Take hold of the Sliding Frame (part #1), and Locking Frame (part #27), and
expand the Car Dolly until it is wide enough to slide the Rollers (part #19) on
either side of the tire. Make sure both sets of Rollers are centered on the tire.
Then, take hold of the Sliding Frame and Locking Frame and collapse the Car
Dolly until each pair of Rollers contact the tire. (See Figure A.)
To Raise The Tire: Make sure to block the ties not being raised.
1. Turn the Release Lever (part #6) as far to the right as it will go. (See Figure B,
next page.)
2. Make sure the Lock Knob (part #12) is no longer engaged in the slot. (See
Figure B, next page.)
3. Pump down of Foot Plate Assy. (#4) to begin raising the tire. Make sure to allow
the Foot Plate Assy. to return to full up position before pumping down on it again.
Continue pumping Foot Plate Assy. until tire is approximately 1 inch off the floor
surface. (See Figure B)
SKU 47990 PAGE 6
FIGURE A
TIRE
FOOT PLATE ASSY. (#4) ROLLER (#19)
ROLLER (#19)
RELEASE LEVER (#6) LOCKING FRAME
(#27)
LOCK KNOB (#12)
SLIDING FRAME (#1)

4. Raise the other tire off the surface of the floor with the other Car Dolly.
CAUTION: Be prepared for any movement the vehicle may make when the
second tire comes clear of the floor surface.
To Move The Vehicle:
1. Take away blocks from back tires. Make sure you have sufficient manpower to
move and control the vehicle.
2. Keep well away from any sloping floor areas and entry ramps.
3. When positioning a vehicle toward a wall, pillar, etc., make sure no person or
object is situated between the vehicle and the wall, pillar, etcetera.
4. Sufficient space should be left between the side of the vehicle and an adjacent
wall or feature to allow the Car Dollies to be removed sideways from the tires.
To Lower The Tire:
1. Disengage the Release Lever (part #6) by moving it as far to the left as it will go.
Then, lift the Lock Knob (part #12) and turn it clockwise until it drops into the slot.
(See Figure C, next page.)
2. Press the Foot Plate Assembly (part #4) all the way down, and allow it to
automatically return all the way up, to begin lowering the tire to the floor surface.
Each downward travel of the Foot Plate Assembly will raise the Lock Knob
(part #12), while the Release Lever (part #6) acts as a stop to lock the Car Dolly in
the next hole down. Continue to operate the Foot Plate Assembly until the tire is
completely resting on the floor surface and no longer exerting pressure on the
Rollers (part #19). (See Figure C, next page.)
SKU 47990 PAGE 7
FIGURE B
FOOT PLATE ASSY. (#4)
TIRE
ROLLER (#19)
ROLLER (#19)
RELEASE LEVER
(#6)
LOCK KNOB (#12)

To Remove The Car Dolly From The Tire:
1. Make sure the Release Lever (part #6) is as far to the left as it will go. Then, lift
the Lock Knob (part #12) and turn it counterclockwise so that it is no longer
engaged in the slot. (See Figure A, page 6.)
2. Take hold of the Sliding Frame (part #1), and Locking Frame (part #27), and
expand the Car Dolly until it is wide enough to slide the Rollers (part #19) out and
away from the sides of the tire. Then, pull the Car Dolly out and away from the
tire. (See Figure A, page 6.)
INSPECTION, MAINTENANCE, AND CLEANING
1. BEFORE EACH USE, inspect the general condition of the Car Dollies. Check for
loose screws, misalignment or binding of moving parts, cracked or broken parts,
and any other condition that may affect their safe operation. If abnormal noise or
vibration occurs, have the problem corrected before further use. Do not use
damaged equipment.
2. PERIODICALLY, use a premium quality, lightweight grease to lubricate all mov-
ing parts.
3. When necessary, wipe with a damp cloth, using a mild detergent or mild solvent.
4. When storing, keep the Car Dollies clean and dry.
SKU 47990 PAGE 8
FOOT PLATE ASSY. (#4)
TIRE
ROLLER (#19)
LOCK KNOB (#12)
RELEASE LEVER
(#6)
ROLLER (#19)
FIGURE C

PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
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 MANUFACTUER 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.
 Description  
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 
PARTS LIST
SKU 47990 PAGE 9

ASSEMBLY DIAGRAM
SKU 47990 PAGE 10