Pittsburgh 57047 Assembly instructions

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Weight Capacity 2 Tons (4,000 lb.)
Maximum Height 16-7/8"
Minimum Height 3-3/8"
Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference. 19j
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2019 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.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly an d se rv ic e may n ot b e in cl uded.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

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Safety ......................................................... 2
Setup .......................................................... 3
Operation .................................................... 4
Maintenance ............................................... 6
Parts List and Assembly Diagram............... 7
Warranty ..................................................... 8
SINO;OT%HKPULVH%IOW%W6@;O;J;LOH
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
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1. Study, understand, and follow all instructions
before operating this device.
2. Do not exceed rated capacity.
3. Use only on hard, level surfaces.
4. Lifting device only. Immediately after lifting,
support the vehicle with appropriate means.
5. Do not move or dolly the vehicle while on the jack.
6. Failure to heed these markings may result in
personal injury and/or property damage.
7. Lift only areas of the vehicle as specified
by the vehicle manufacturer.
8. No alterations shall be made to this product.
9. Never work on, under or around a load
supported only by this device.
10. Do not adjust safety valve.
11. Wear ANSI-approved safety goggles and
heavy-duty work gloves during use.
12. Keep clear of load while lifting and lowering.
13. Lower load slowly.
14. Apply parking brake and chock
tires before lifting vehicle.
15. Lift vehicle only at manufacturer
recommended locations.
16. Inspect before every use; do not use
if parts are loose or damaged.
17. Do not use for aircraft purposes.
18. 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.
19. The Handle socket may be held down by a clip
under tension. Wear ANSI-approved safety goggles
before freeing Handle socket. Remove clip carefully.
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Check hydraulic oil level and fill to 1/4″ below
the fill port as needed as stated on page 4.
Thoroughly test the Jack for proper operation.
If it does not work properly, bleed air from its
hydraulic system as stated on page 4.
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O&$*- For additional information regarding the parts listed in the following pages,
refer to Parts List and Assembly Diagram on page 7.
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U-Joint (Not Shown)
Saddle
Handle
Handle Socket
Oil Fill Screw
(Not Shown)
Lifting Arm
Rear Caster
U-Joint
Hydraulic Unit
Fill Screw
Safety Valve
Cover
DO NOT OPEN
OR ADJUST
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1. Align the hole on the Lower Handle with
the Handle Lock Button and connect
the Upper and Lower Handles together.
Make sure the Button clicks into place.
2. Loosen the Set Screw and insert the
assembled Handle into the Handle Socket.
3. Tighten the Set Screw.
U7**9"83
1. Turn handle counterclockwise
to open Release Valve.
2. Remove four screws holding on pump cover.
3. Remove Oil Fill Plug and top off hydraulic oil.
4. Apply pressure to saddle and quickly
pump handle several times.
5. Check Oil Fill Hole again and top off
with hydraulic oil if necessary.
6. Replace the Oil Fill Plug and turn handle
clockwise to close Release Valve.
7. Test several times for proper operation
before attempting to lift a load.
I99"83%L"7
1. Remove the Fill Screw.
2. Add high grade hydraulic fluid into the Fill Screw
slowly until the oil reaches the top of the oil fill hole.
O&$*-%Do not touch the Handle when
adding the hydraulic oil.
3. Replace the Fill Screw.

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1. Turn the Handle counterclockwise to lower the Jack.
Once the Jack is fully lowered, turn the
Handle firmly clockwise to close it.
2. Carefully position the Saddle of the Jack under
the vehicle manufacturer’s recommended lifting
point. (See vehicle manufacturer’s owner’s
manual for location of frame lifting point.)
3. Pump the Handle until the top of the Jack’s Saddle
has nearly reached the vehicle lifting point. Position
the Saddle directly under the vehicle’s lifting point.
4. To lift the vehicle, pump the Handle of
the Jack. Use smooth, full strokes.
5. Once the vehicle is raised, slide a jack stand of
appropriate capacity (not included) under a proper
lifting point referred to in the vehicle owner’s
manual. Always use two jack stands, position them
at the same point on each side of the vehicle.
SINO;OT[ The rated capacity of jack stands is
per pair, not the individual capacities combined
unless specifically noted on the product by the jack
stand manufacturer. Do not exceed rated jack stand
capacity. Ensure that the vehicle support points
are fully seated in the saddle of both jack stands.
Use a matched pair of jack stands per vehicle to
support one end only. Failure to do so may result
in the load suddenly falling, which may cause
personal injury and/or property damage.
6. Center the vehicle’s lifting point(s) on the saddle of
the jack stand(s). Set the jack stand(s) to the same
height according to the manufacturer’s instructions,
making sure that they lock securely into position.
7. Slowly turn the Handle counterclockwise to lower
the vehicle onto the saddle(s) of the jack stand(s).
Then, turn the Handle firmly clockwise to close it.
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1. Carefully remove all tools, parts, etc.
from under the vehicle.
2. Position the Saddle under the lifting point.
Turn the Handle firmly clockwise and raise
load high enough to clear the jack stands,
then carefully remove jack stands.
3. Slowly turn the Handle counterclockwise
(never more than 1/2 full turn) to lower
the vehicle onto the ground.
4. Lower the Jack completely. Then, store in a
safe, dry location out of reach of children.
5. To prevent accidents, turn off the tool and
disconnect its power supply after use. Clean, then
store the tool indoors out of children’s reach.

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1. Before each use, inspect the general condition
of the Jack. Check for broken, cracked, or bent
parts, loose or missing parts, and any condition
that may affect the proper operation of the product.
If a problem occurs, have the problem corrected
before further use.
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2. Before each use, thoroughly test the Jack
for proper operation prior to its actual use.
If the Jack appears not to be working properly,
follow Bleeding instructions on page 4.
3. Change the hydraulic oil at least
once every three years:
a. With the Jack fully lowered, remove the Oil
Filler Plug on the side of the Housing.
b. Tip the Jack to allow the old hydraulic oil
to drain out of the Housing completely,
and dispose of the old hydraulic oil in
accordance with local regulations.
c. With the Jack upright, completely fill the
Housing with a high quality hydraulic oil (not
included) until the oil is 1/4″ below the fill hole.
d. Open the valve by turning the Handle
counterclockwise and pump the Handle
to bleed air from the system.
e. Recheck oil level and re-fill as needed.
f. Reinstall the Oil Filler Plug.
4. Wipe dry with a clean cloth. Then, store the
Jack in a safe, dry location out of reach of
children and other non-authorized people.
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Jack will
not lift at
its weight
capacity
Saddle
lowers
under
load
Pump
stroke
feels
spongy
Saddle
will not
lift all
the way
Handle
moves up
when jack
is under
load
Oil leaking
from filler
plug
f f Check that Release Valve is fully closed.
Bleed air from the system.
f f f
Valves may be blocked and may not close fully. To flush the valves:
1. Lower the Saddle and securely close the Release Valve.
2. Manually lift the saddle several inches.
3. Open the release valve and force the saddle down as quickly as possible.
f f f Jack may be low on oil. Check the oil level and refill if needed.
Jack may require bleeding - see instructions on page Bleeding on page 4.
fUnit may have too much hydraulic oil inside, check fluid level and adjust if needed.

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1 Retaining Ring 18 2
2 Front Wheel Washer 2
3 Front Wheel 2
4 Frame 1
5 Nut M16 2
6 Washer 16 2
7 Screw M5X12 4
8 Rear Caster 2
9 Screw M10X20 4
10 Washer 10 4
11 Saddle Screw 2
12 Washer 18 2
13 Screw M8X22 4
14 Washer 8 4
15 Retaining Ring 12 1
16 Roller 1
17 Handle Socket 1
18 Roller Pin 1
19 Handle Release Bolt 1
20 Upper Handle 1
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21 Handle Bumper 1
22 Lower Handle 1
23 Handle Lock Button 1
24 U-Joint 1
25 Hydraulic Unit 1
26 Spring 2
27 Retaining Ring 19 2
28 Hydraulic Unit Adaptor 1
29 Pin A4x40 1
30 Lift Arm Shaft 1
31 Retaining Ring 22 2
32 Zerk Fitting 1
33 Tie Rod 2
34 Retaining Ring 16 4
35 Cover Plate 1
36 Radius Link 2
37 Lift Arm 1
38 Saddle 1
39 Saddle Screw 1
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O&$*- If product has no serial number, record month and year of purchase instead.
O&$*- Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.

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Harbor Freight Tools Co. makes every effort to assure that its 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
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, normal wear and tear, 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 of 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 returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
MV6IH6%N6IW%J\6%@LVVLS;OT%QIN6@RVVK
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 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.