Instructions
Screw Prime
Grease Guns
Page 2 of 2
• 10,000psi Models:
10610, 10610HDC, 10635, 10645,
10655, 10655HDC, 10675, 10690
• 15,000psi Models:
10680HDC, 11050, 11070
Revision 3/02/22
Read complete instructions
before using this Gun.
8404 Braniff
Houston, Texas 77061
713-644-1164 • FAX 713-644-7761
www.dualco-inc.com
Producing Professional lubrication products
since 1960. Products are made and assembled
in the USA. 100% Repairable and Recyclable.
© 2022 Dualco, Inc
Includes
All models of the DUALCO Grease Gun are high-pressure tools
that should be used with caution and according to these
instructions.
IMPORTANT • Do not exceed 10,000 psi for most models, or
15,000 psi for models 10680HDC, 11050 and 11070.
During operation, lever action of the Plunger Handle (9) causes
the Plunger (10) to move in and out of the Head (1). As the
Plunger (10) goes into the Head (1) it forces the material
lubricant (packing, sealant or cleaner) from the Barrel (5) out
through the Head (1) discharge port. Numerous options are
available for Head (1) attachments to transmit material to the
desired pump, valve, or other equipment. Be sure to have the
appropriate material transmission apparatus or hose assembly
rmly attached to Head (1) before Gun operation.
The (numbers) shown herein refer to included general parts list.
To ensure the DUALCO Grease Gun will perform and operate
properly, use after use, keep the gun out of the weather, clean
and maintained.
Always make sure the Head (1) and Collar (6) are rmly attached
to the Barrel (5) and be sure there is full thread engagement
between these parts before Gun operation.
Part 1. Operation & Description
A. To load the DUALCO screw prime, lever operated Grease
Gun(s) with lubricant, sealant, or cleaner) UNSCREW Barrel (5)
Assembly from the Head (1) counter-clockwise until it comes
free.
B. Turn Screw Handle (7) counter-clockwise completely out until
it stops.
C. Insert a “J” Stick, “K” Stick, Gun Bag or bulk material into the
Barrel (5).
D. Screw Barrel (5) Assembly clockwise into Head Assembly (1).
Make sure Barrel (5) is rmly seated in the Head Assembly (1).
E. Turn Screw Handle (7) clockwise, so the Primer Spring
Assembly (3) fully compresses material to be pumped. For
15,000psi models, cycle the Pressure Release Valve (15) open,
then closed.
F. Connect Giant Button Head Coupler (13) to a Giant Button
Head Fitting on a valve and stoke Plunger Handle (9) to pump
lubricant (packing, sealant or cleaner) into tting.
G. As the Gun loses its prime or is no longer pumping material,
repeat steps Ethru G.
To remove the Gun from operation, make sure there is no
back pressure. Always Back-o (turn counter-clockwise)
the Screw Handle (7), and for 15,000psi models, open the
Pressure Release Valve (15) (counter-clockwise).
IMPORTANT • Warranty will be voided if Gun is altered IN ANY
WAY.
Part 2. Loading
NOTE • For technical assistance regarding any other
operation, repair, or rebuilding procedure, contact DUALCO
713-644-1164
Each new DUALCO Grease Gun is ready
to use, following this procedure:
