Central Machinery 63995 Assembly instructions

!"#"$%&'(%)*+#"$*%,$-%.$$/-00)))1.,(+&(2(*"3.$14&5
65,"7%&'(%$*4.8"4,7%#'//&($%,$-%/(&9'4$#'//&($:.,(+&(2(*"3.$14&5
!"#"$%&'(%)*+#"$*%,$-%.$$/-00)))1.,(+&(2(*"3.$14&5
65,"7%&'(%$*4.8"4,7%#'//&($%,$-%/(&9'4$#'//&($:.,(+&(2(*"3.$14&5
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. 18k
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© 2018 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.

Page 2 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 63995
EF;6GH IJ6KFGLIM NFLMG6MFMO6E6GPJ
G,+7*%&2%O&8$*8$#
Safety ......................................................... 2
Specifications ............................................. 3
Assembly .................................................... 5
Operation .................................................... 8
Maintenance ............................................... 9
Parts List and Assembly Diagram.............. 11
Warranty .................................................... 12
QFKMLMR%EHNSITE%FMU%U6;LMLGLIME
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.
L5/&($,8$%E,2*$V%L82&(5,$"&8
1. Keep hands away from arbor plates
and press pin during use.
2. Do not move workpiece while compressed.
3. Release load before service or maintenance.
4. Keep area under arbor plates clear. If arbor
plates rest on obstruction (i.e. bolt, debris,
etc.), it creates an uneven press, causing
excess stress and possible breakage.
5. Avoid off-center loads. Do not operate if
workpiece tilts or binds during compression.
6. STOP and release compression if you suspect
imminent structural failure. If safe, inspect
thoroughly and reposition before proceeding.
7. Do not compress springs or other elastic
objects. They could disengage hazardously.
8. Wear ANSI-approved safety goggles,
heavy-duty work gloves, and steel-toe
work boots during set up and/or use.
9. Keep bystanders out of work area.
10. Do not stand directly in front of the
press when loaded. Do not leave the
press unattended when loaded.
11. Do not operate the hydraulic ram
beyond rated capacity.
12. Inspect before every use; do not use
if parts are loose or damaged.
13. Ram service must be performed only by
qualified repair personnel. Service or
maintenance performed by unqualified
personnel could result in a risk of injury.
14. When servicing a ram, use only identical
replacement parts – refer to attached, product-
specific parts list and diagram. Follow instructions
in the
“User - Maintenance Instructions” section
of this manual. Use of unauthorized
parts or failure to follow maintenance
instructions may create a risk of injury.

Page 3;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1Item 63995
EF;6GHIJ6KFGLIMNFLMG6MFMO6 E6GPJ
15. Only use with accessories rated to handle the
forces exerted by this tool during operation. Other
accessories not designed for the forces generated
may break and forcefully launch pieces.
16. Use only with ram included with this press.
17. Industrial applications must follow
OSHA requirements.
18. This product is not a toy. Keep it
out of reach of children.
19. Maintain labels and nameplates on the
Shop Press. These carry important safety
information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
20. The warnings, precautions, 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
factors which cannot be built into this product,
but must be supplied by the operator.
%EF!6%GW6E6%LMEGKPOGLIME1
E/*4"2"4,$"&8#
Maximum Capacity 6 Tons
(12,000 lb)
Working Distance 2" - 4"
Press Pin Diameter Ø5/8"

Page 4 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 63995
EF;6GH IJ6KFGLIM NFLMG6MFMO6E6GPJ
E*$'/%?%S*2&(*%P#*
M&$*- For additional information regarding the parts listed in the following pages,
refer to the Parts List and Assembly Diagram near the end of this manual.
O&5/&8*8$#%,89%O&8$(&7#
K,5
J"#$&8
J(*##%
F/(&8
J(*##%F/(&8%
E'//&($%J"8#
J(*##%
J"8
K,5%
W,897* ;"77%J7'3
X&8%+,4YZ
K*7*,#*%
!,7[*
F(+&(%
J7,$*#
;"3'(*%F

Page 5;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1Item 63995
EF;6GHIJ6KFGLIMNFLMG6MFMO6 E6GPJ
%F##*5+7V%L8#$('4$"&8#
% K*,9%$.*%6MGLK6 LNJIKGFMG%EF;6GH%LM;IKNFGLIM%#*4$"&8%,$%$.*%+*3"88"83%&2%$."#%
5,8',7%"847'9"83%,77%$*\$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%#*$%'/%&(%'#*%&2%$."#%/(&9'4$1
Q*,(%FMEL?,//(&[*9%#,2*$V%3&337*#=%.*,[V?9'$V%)&(Y%37&[*#=%
,89%#$**7?$&*%)&(Y%+&&$#%9'("83%#*$%'/%,890&(%'#*1
M&$*- ;"83*(%$"3.$*8%,77%4&88*4$"&8#%'8$"7%,##*5+7V%
"#%9&8*1%%P87*##%9"(*4$*9%&$.*()"#*=%9&%8&$%2'77V%
$"3.$*8%$.*%2,#$*8*(#%'8$"7%(*,9V%$&%,7"38%$.*%
,##*5+7*9%/(*##1
F##*5+7*%&8%,%27,$=%7*[*7=%.,(9%#'(2,4*1
P#*%,%.*7/*(%).*8%8*4*##,(V1
1. Attach Back (6) and Front (11) Frames to Foot (3)
with two sets of Bolts (1), Washers (2), and Nuts (4).
M&$*- Make sure holes align on Back and Front Frames.
2. Repeat for the other Frames and Foot.
S,4Y%
;(,5*%XAZ
;(&8$%
;(,5*%X>>Z
S&7$#%
X>Z
Q,#.*(#%X]Z
M'$#%
X^Z
;&&$%X_Z
;"3'(*%S
3. Attach Spreader (5) to front and back of
Frame/Foot assembly with two Bolts (1),
Washers (2), and Nuts (4).
4. Repeat to attach other Frame/Foot assembly
to the other end of the Spreader (5).
;"3'(*%O
5. Slide Press Apron (15) over Foot/Frame assemblies
and secure with Press Apron Support Pins (7).
QFKMLMR`%%E'//&($%J"8#%5'#$%+*%4*8$*(*91
J(*##%
F/(&8%X>BZ
J(*##%F/(&8%
E'//&($%J"8#%XCZ
;"3'(*%U
6. Attach lower Press Pin Guide (18) to
Bottom Cross Beam (16) with two Bolts (1),
Washers (2), and Nuts (4). Tighten securely.
J(*##%J"8%
R'"9*%X>@Z
S&7$#%X>Z
S&$$&5%O(&##%
S*,5%X>AZ
;"3'(*%6
7. Attach upper Press Pin Guide (18) to
Top Cross Beam (17) with two Bolts (1),
Washers (2), and Nuts (4). Tighten securely.
S&7$#%
X>Z
G&/%O(&##%
S*,5%X>CZ
;"3'(*%;
Q,#.*(#%X]Z=
M'$#%X^Z
E/(*,9*(%
XBZ
S&7$%
X>Z
S&7$%
X>Z

Page 6 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 63995
EF;6GH IJ6KFGLIM NFLMG6MFMO6E6GPJ
8. Slide Bottom Cross Beam assembly between
Frame/Foot assemblies and attach with two
sets of Bolts (9), Washers (2) and Nuts (4).
S&7$%
XDZ Q,#.*(%X]Z
M'$%
X^Z
;"3'(*%R
9. Attach two Header Supports (29) together
with Bolt (28), Washer (24), and Nut (23),
leaving a gap for the Header.
10. Repeat for other two Header Supports.
W*,9*(%
E'//&($%X]DZ S&7$%
X]@Z
Q,#.*(%
X]^Z
M'$%
X]_Z
;"3'(*%W
11. Slide Header (30) between Header Support
assemblies and attach with two sets of
Bolts (27), Washers (26) and Nuts (25).
M&$*- Tighten connections enough to avoid wobbling.
M'$%
X]BZ
Q,#.*(%
X]AZ
S&7$%
X]CZ
W*,9*(%
X_aZ
;"3'(*%L
M&$*-%%P#*%,%.*7/*(%2&(%$.*%8*\$%#$*/1
12. Slide Top Cross Beam assembly between
Frame/Foot assemblies and, at the same
time, place Header Support assemblies
outside Frame/Foot assemblies.
13. Attach with two sets of Bolts (10),
Washers (12) and Nuts (13).
M&$*- Tighten connections enough to avoid wobbling.
S&7$%
X>aZ
W*,9*(%
E'//&($
F##*5+7V
G&/%O(&##%
S*,5%
F##*5+7V Q,#.*(%
X>]Z
M'$%
X>_Z
;"3'(*%b
14. Hang Springs (22) on Bolts (28) that
connect Header Supports.
E/("83%
X]]Z
;"3'(*%c%
W*,9*(%
E'//&($

Page 7;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1Item 63995
EF;6GHIJ6KFGLIMNFLMG6MFMO6 E6GPJ
15. Attach both Eye Bolts (21) to Ram Plate (19)
by threading Nuts (20) about 1/2″ in only.
K,5%J7,$*%
X>DZ
M'$%
X]aZ
6V*%S&7$%
X]>Z
;"3'(*%T%
16. Guide Press Pin through Press Pin Guides
and let Ram Plate rest on Top Cross Beam.
17. Align the assembled press. Square the bottom
frame and tighten it. Level the top frame and
square all components, then tighten all connections
securely, except for Eye Bolts. QFKMLMR`%%J(*##%
F/(&8%E'//&($%J"8#%XCZ%5'#$%+*%4*8$*(*91
J(*##%
J"8
;"3'(*%N
18. Pull up on Ram Plate and attach Eye Bolts to Springs.
19. Push Ram Piston all the way down, then
place Ram (31) on Ram Plate.
M&$*- If more space is needed to
install Ram, loosen Eye Bolts.
20. When Ram is in place, tighten Eye Bolts evenly,
making sure the Ram Plate remains level.
21. Install Ram Handle (8) and pump it until Piston is
seated firmly in Piston Ring. Verify alignment, then
tighten Eye Bolts as needed. Verify the Jack is in
line with the Ram and all connections are tight.
22. Place Arbor Plates (14) on Press Apron (15).
23. Follow instructions in
Bleeding the Ram on page 8.
J"#$&8
J"#$&8%
K"83
F(+&(%
J7,$*#%X>^Z
;"3'(*%M%
24. Locate Shop Press on a solid, level surface,
capable of supporting the weight of the
Shop Press and the workpiece.
K,5%
W,897*
X@Z
J(*##%F/(&8%
E'//&($%J"8#%XCZ

Page 8 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 63995
EF;6GH IJ6KFGLIM NFLMG6MFMO6E6GPJ
I/*(,$"83%L8#$('4$"&8#
%K*,9%$.*%6MGLK6%LNJIKGFMG%EF;6GH%LM;IKNFGLIM%#*4$"&8%,$%$.*%+*3"88"83%&2%$."#%
5,8',7%"847'9"83%,77%$*\$%'89*(%#'+.*,9"83#%$.*(*"8%+*2&(*%#*$%'/%&(%'#*%&2%$."#%/(&9'4$1
L8#/*4$%$&&7%+*2&(*%'#*=%7&&Y"83%2&(%9,5,3*9=%7&&#*=%,89%5"##"83%/,($#1%%L2%,8V%/(&+7*5#%
,(*%2&'89=%9&%8&$%'#*%$&&7%'8$"7%(*/,"(*91%%%Q*,(%FMEL?,//(&[*9%#,2*$V%3&337*#=%
.*,[V?9'$V%)&(Y%37&[*#=%,89%#$**7?$&*%)&(Y%+&&$#%9'("83%#*$%'/%,890&(%'#*1
S7**9"83%$.*%K,5
LNJIKGFMG` Before first use, check for proper
hydraulic fluid level in the Ram. Then thoroughly
test the Ram for proper operation prior to its
actual use. If the Ram appears not to be working
properly, it may be necessary to bleed its hydraulic
system of excess air. To bleed the Ram:
1. Remove the Fill Plug.
2. Place the slot on the Ram Handle
over the Release Valve.
3. Turn the Ram Handle counterclockwise
to open the Release Valve.
4. Insert the Ram Handle into the Fulcrum, then
pump the Ram Handle quickly several times.
5. Check the Fill Hole and, if necessary,
top off with hydraulic fluid.
6. Place the slot on the Ram Handle
over the Release Valve Screw.
7. Turn the Ram Handle clockwise to
close the Release Valve.
8. Replace the Fill Plug.
9. Test the Ram several times before putting into use.
R*8*(,7%I/*(,$"83%L8#$('4$"&8#
1. Adjust the Press Apron height as necessary.
M&$*- The Press Apron should be in the
highest position possible with the workpiece
as close as possible to the Press Pin.
2. Place the workpiece on the Arbor Plates.
Adjust the Arbor Plates to support the
stationary part of the workpiece.
QFKMLMR` Keep area under Arbor Plates
clear. If Arbor Plates rest on obstruction
(i.e., bolt, debris, etc.), it creates an uneven press,
causing excess stress and possible breakage.
QFKMLMR` When pressing two items together,
the items must be lined up vertically. If not, one
may forcefully eject itself sideways from the unit.
3. Close the Release Valve.
4. Pump the Ram Handle until Press Pin
contacts the workpiece. Continue to pump
the Ram Handle to press the workpiece.
5. After work is completed, be careful when
releasing Jack pressure. E7&)7V open the
Release Valve, allowing the Ram Plate to rise.
6. WARNING! During the release process the
Ram may rise quickly. Stay clear.
7. Store Shop Press out of reach of children.
QFKMLMR` Before use, inspect the position of
the Press Apron Support Pins (7) to be sure they
are centered before and during operation.

Page 9;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1Item 63995
EF;6GHIJ6KFGLIMNFLMG6MFMO6 E6GPJ
P#*(?N,"8$*8,84*%L8#$('4$"&8#
%J(&4*9'(*#%8&$%#/*4"2"4,77V%*\/7,"8*9%"8%$."#%5,8',7%5'#$%
+*%/*(2&(5*9%&87V%+V%,%<',7"2"*9%$*4.8"4",81
% GI%JK6!6MG%E6KLIPE%LMbPKH%;KIN%GIIT%;FLTPK6-%
U&%8&$%'#*%9,5,3*9%*<'"/5*8$1%%L2%,+8&(5,7%8&"#*%&(%["+(,$"&8%&44'(#=%.,[*%$.*%
/(&+7*5%4&((*4$*9%+*2&(*%2'($.*(%'#*1
1. S*2&(*%*,4.%'#*=%inspect the general condition
of the Shop Press and Ram. Check for broken,
cracked, or bent parts, loose or missing parts, and
any condition that may affect the proper operation of
the product. If a problem occurs, have the problem
corrected before further use.%
U&%8&$%'#*%9,5,3*9%*<'"/5*8$1
2. S*2&(*%*,4.%'#*=%$.&(&'3.7V%$*#$%$.*%K,5%2&(%
/(&/*(%&/*(,$"&8%/("&(%$&%"$#%,4$',7%'#*1%%L2%$.*%
K,5%,//*,(#%not%$&%+*%)&(Y"83%/(&/*(7V=%2&77&)%
"8#$('4$"&8#%"8%Bleeding the Ram on page 8.
3. O.,83*%$.*%.V9(,'7"4%27'"9%,$%7*,#$%&84*%*[*(V%
$.(**%V*,(#1%G&%4.,83*%$.*%.V9(,'7"4%27'"9-
a. With the Ram fully lowered, unhook
the Springs from the Eye Bolts, then
remove the Ram from the Ram Plate.
b. Remove the Filler Plug.
c. Tip the Ram to allow the old hydraulic
fluid to drain out of the unit completely,
and dispose of the old hydraulic fluid in
accordance with local regulations.
d. Completely fill the unit with a high quality
hydraulic fluid (not included) until the fluid
just begins to run out of the Fill Hole.
e. Reinstall the Filler Plug.
f. Clean with a clean cloth using a
detergent or mild solvent.
g. Replace the Ram onto the Ram Plate.

Page 10 ;&(%$*4.8"4,7%<'*#$"&8#=%/7*,#*%4,77%>?@@@?@AA?BCDC1 Item 63995
EF;6GH IJ6KFGLIM NFLMG6MFMO6E6GPJ
G(&'+7*#.&&$"83
% GI%JK6!6MG%E6KLIPE%LMbPKH-%
P#*%4,'$"&8%).*8%$(&'+7*#.&&$"83%,%5,72'84$"&8"83%(,51%%%
O&5/7*$*7V%(*#&7[*%,77%/(&+7*5#%+*2&(*%'#*1 If the solutions presented in the
Troubleshooting guide do not solve the problem, have a qualified technician inspect and repair the ram before use.
F2$*(%$.*%(,5%"#%(*/,"(*9-%%G*#$%"$%4,(*2'77V%)"$.&'$%,%7&,9%+V%(,"#"83%"$%,89%7&)*("83%"$%2'77V=%4.*4Y"83%2&(%
/(&/*(%&/*(,$"&8=%S6;IK6%K6GPKMLMR%GW6%KFN%GI%IJ6KFGLIM1
UI%MIG%PE6%F%UFNFR6U%IK%NFT;PMOGLIMLMR%KFN`
JIEELST6%EHNJGINE
JKISFST6%EITPGLIM
XN,Y*%4*($,"8%$.,$%$.*%d,4Y%"#%8&$%#'//&($"83%
,%7&,9%)."7*%,$$*5/$"83%,%#&7'$"&81Z
Pump
stroke feels
spongy
Piston will
not lift all
the way
Handle
moves up
when ram
is under
load
Fluid
leaking
from filler
plug
eCheck that Release Valve is closed fully.
e
Valves may be blocked and may not
close fully. To flush the valves:
1. Lower the piston and securely close the Release Valve.
2. Manually lift the piston several inches.
3. Open the release valve and force the
piston down as quickly as possible.
e e
Ram may be low on fluid. Check the
fluid level and refill if needed.
Ram may require bleeding - see instructions on page 8.
eUnit may have too much hydraulic fluid inside,
check fluid level and adjust if needed.
K*4&(9%J(&9'4$f#%E*(",7%M'5+*(%W*(*-%
M&$*- If product has no serial number, record month and year of purchase instead.
M&$*- Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.