Central Hydraulics 33795 User manual

2 TON ONE-END
FRAME LIFT
ASSEMBLY and OPERATING
INSTRUCTIONS
Model 33795
R
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright©2004 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
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.

Page 2
SKU 33795
Specifications
yticapaCmumixaMsnoT2
hcaeR"4/1-71
snoisnemiDllarevOH”2/1-65x”03x”2/1-53
egnaRtnemtsujdAdaP”75ot”81
thgieHelddaS”63ot”11
erusserPriAdednemmoceRISP521
erusserPriAmumixaMISP541
epyTliOciluardyH liOciluardyH23GVOSI tnereffidahtiwlionaeriuqeryamsnoitidnocerutarepmetemertxE( ).naicinhcetdeifilauqatlusnoc–ytisocsiv
noitpmusnoCriAISP521@MFC5
telnIriATPN”4/1
Save This Manual
You will need the manual for the safety warnings and precautions, assembly instruc-
tions, 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 the Frame Lift, 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 product!
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 lit. Do not use electrically powered
tools in the presence of flammable gases or liquids.
3. Keep children away. Children must never be allowed in the work area. Do not let them
handle machines, tools, extension cords, or air hoses.
4. Store idle equipment. When not in use, the Frame Lift must be stored in a dry location
to inhibit rust. Always lock up products and keep out of reach of children.
5. Use the right Frame Lift for the job. Do not attempt to force a small Frame Lift to do
the work of a larger industrial model. There are certain applications for which this product
was designed. It will do the job better and more safely at the rate for which it was
intended. Do not modify this product and do not use this product 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 nonconductive clothes and nonskid footwear are
recommended when working. Wear restrictive hair covering to contain long hair.
7. Use eye protection. Always wear ANSI approved impact safety goggles.
8. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines or air hoses. REV 12/05

Page 3
SKU 33795
9. Maintain products with care. Keep products clean for better and safer performance.
Follow instructions for lubricating and changing accessories. Inspect tool cords and air
hoses periodically, and if damaged, have them repaired by an authorized technician.
The handles must be kept clean, dry, and free from oil and grease at all times.
10. Disconnect air supply. Disconnect air hose when not in use.
11. Avoid unintentional starting. Be sure the Frame Lift is not attached to the air source
until you are ready to start lifting.
12. Stay alert. Watch what you are doing, use common sense. Do not operate the Frame
Lift when you are tired.
13. Check for damaged parts. Before using any product, 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. Do
not use the tool if the lever does not operate properly.
14. Guard against electric shock. Prevent body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerator enclosures.
15. 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 product. Approved accessories are available from Harbor Freight Tools.
16. Do not operate the Frame Lift if under the influence of alcohol or drugs. Read
warning labels if taking prescription medicine to determine if your judgement or reflexes
are impaired while taking drugs. If there is any doubt, do not operate the product.
17. Use proper size and type extension cord. If an extension cord is required, it must be of
the proper size and type to supply the correct current to the compressor without heating
up. Otherwise, the extension cord could melt and catch fire, or cause electrical damage
to the compressor. Check your air compressor’s manual for the appropriate size cord.
18. Maintenance. For your safety, maintenance should be performed regularly by a qualified
technician.
19. Compressed air only. Never use combustible gas as a power source.
20. The brass components of this product contain lead, a chemical known to the State of
California to cause birth defects (or other reproductive harm).
(California Health & Safety code 25249.5,
et seq. )
Note: Performance of the compressor (if powered by line voltage) may vary depending
on variations in local line voltage. Extension cord usage may also affect tool perfor-
mance.
Warning:The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot be
built into this product, but must be supplied by the operator.

Page 4
SKU 33795
Frame Lift Specific Safety Warnings
1. Always use the Frame Lift on a flat, level, hard, dry surface, capable of supporting the
Frame Lift and a maximum capacity load (2 Tons).
2. Never exceed the maximum capacity of 2 tons (4000 Lbs.). Always be aware of
Dynamic Loading. If you drop a weight on the Lift it may create, for a brief instant, an
excess load, causing property damage, SERIOUS INJURY, and/or DEATH.
3. This Frame Lift is designed for lifting only. Do not use it to support vehicles while
working underneath the vehicle. Support vehicles with proper capacity jack stands
(not included).
4. Never go under or allow other people or animals to go under a load supported by the
Frame Lift alone.
5. Never use the Frame Lift for aircraft purposes.
6. Before lifting or lowering, make sure there are no air hoses, tools, or power cords under
the Triangular Foot.
7. Make sure the load is secured to both of the Rubber Pads (32).
8. The Bar (7) cannot support a freestanding load on its own. If it is swung out with a
freestanding load, it may break causing the vehicle to tilt or fall, resulting in SEVERE
INJURY OR DEATH.
9. When lifting an engine or transmission, read the vehicle owner’s manual to find the
proper lifting points.
10. Never adjust or loosen the Air Regulator or any other part of the AirValve (22), or
the load may fall too quickly, causing SEVERE INJURY OR DEATH.
See FIGURE 2 on page 5.
11. Never turn off the air compressor or disconnect the air hose unless the lift is in com-
pletely lowered position.
12. Do not disable or interfere with proper operation of the Safety Catches. Check for
proper operation of the Safety Catches before each use.
Rubber Pad (32)
FIGURE 1
Rubber Pad (32)
Handle Grip (25)
Bar (7)
Bar
Triangular Foot

Page 5
SKU 33795
Operation
For best service you should incorporate an oiler, regulator, and inline filter, as shown in
the diagram above. Hoses, couplers, oilers, regulators, and filters are all available at Harbor
Freight Tools.
1. You will need to prepare a 1/4” air connector (sold separately) to connect to the air inlet
on the Frame Lift. First, wrap the 1/4” air connector with pipe thread seal tape (not
included) before threading it into the Air Inlet (on the Air Valve (22)). Connect the 3/8”
ID Air Source Hose to the Frame Lift.
Note: If you are not using an automatic oiler system, before operation, add a few drops
of Pneumatic Tool Oil to the airline connection. Add a few drops more after each hour
of continual use.
2. Set the air pressure on your compressor to 125 PSI. Do not exceed the maximum air
pressure of 145 PSI.
3. Check the air connection for leaks. Then, disconnect from the air source until opera-
tion.
Frame
Lift
UP
Unpacking
When unpacking, check to make sure the parts listed on page 7 are included. If any
parts are missing or broken, please call Harbor Freight Tools at the number on the cover of
this manual as soon as possible.
FIGURE 2
Air Valve (22)
Partially hidden
under Cover (24).
DOWN
Make sure all of the air accessories you use are rated to a
maximum pressure of at least 145 PSI.
Air Regulator
(releases air
in a controlled
manner when
lowering)
Lever
Air Inlet

Page 6
SKU 33795
Operation (continued)
1. Make sure the Rubber Wheels (3) are well lubricated and move freely.
2. Connect the air supply as explained on page 5.
3. By pulling on them, adjust the Lift Arms (28) to fit under the proper lift points on the
vehicle or engine. If necessary, lubricate the Lift Arms (28) slightly.
4. Securely block the tires on the opposite end of the vehicle. Push the front end of the
Frame Lift under the vehicle or engine and line up the Rubber Pads (32) with the lifting
points on the vehicle.
5. When you are ready to lift, press the Lever (See FIGURE 2 on page 5) to the “UP” or lift
position. The Frame Lift will begin lifting the load and the Safety Latch will engage into
place (see below). The Safety Latch will slide over
the Latches on the Vertical Post of the Base
Assembly (1) as the load is lifted to the
desired height.
6. Once the vehicle has reached the de-
sired height, release the Lever to stop
the air flow. The lifted load will come to
rest on a safety notch. Promptly support
the vehicle with jack stands (not included)
before working.
Warning! Make sure no tools, air hoses, or cables
are under the load before lowering it. Keep all bystanders clear of the load.
7. To lower the unit, adjust the Lever to lift the load slightly, then push the Lever toward the
“Down” position while making sure the Safety Latch is held up.
FIGURE 3
Safety Latch
Maintenance
Warning! Never perform maintenance procedures while the Frame Lift carries a load.
1. Keep the Rubber Pads (32) and Bar (7) free of dirt, grease, and debris.
2. Periodically lubricate the lifting pivot points with a high grade lubricant.
3. Before each use, check the entire Frame Lift for cracks, breaks, or air leaks*. If any are
found, do not use the unit. Have it taken to an authorized service technician.
*Air seeping out of the Air Regulator (see Figure 2, page 5) does not necessarily indicate a problem.
Note: The Bar (7) can be inserted through the bracket on the top of the cylinder, and rest on
the Lift, as shown in FIGURE 1 on page 4.

Page 7
SKU 33795
NOTE: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
Parts List
traP noitpircseD .ytQ traP noitpircseD .ytQ
1 ylbmessAesaB 1 81 61MrehsaWgnirpS 1
2 pilc-C 4 91 61MtuN 1
3 sleehWrebbuR 2 02 pirGhctaLytefaS 1
4 ylbmessApoT 1 12 gnittiF’L‘ 1
5 rotsaCleviwS 1 22 evlaVriA 1
6 notsiP 1 32 elppiNepiP 1
7 raB 1 42 revoC 1
8 gnikcaPpuC 1 52 spirGeldnaH 2
9 rehsaWpuC 1 62 01MrehsaWgnirpS 2
01 52x21MtloB 1 72 01MtuN 2
11 021x21MtloB 1 82 smrAtfiL 2
21 09x21MtloB 1 92 09x6MtloB 1
31 21MtuN 2 03 6MtuN 1
41 relloR 1 13 sdaPtfiL 2
51 gniraeB 2 23 daPrebbuR 2
61 gnihsuBrelloR 1 33 8MtuN 8
71 001x61MtloB 1
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIA-
GRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE
MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION ORWARRANTY
OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY RE-
PAIRSTOTHE PRODUCT ORTHAT HE OR SHE IS QUALIFIEDTO REPLACE ANY PARTS
OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EX-
PRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE
UNDERTAKEN BY CERTIFIED AND LICENSEDTECHNICIANS AND NOT BYTHE BUYER.
THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER RE-
PAIRSTOTHE ORIGINAL PRODUCT OR REPLACEMENT PARTSTHERETO, OR ARISING
OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

Page 8
SKU 33795
Assembly Drawing
0 9