ATS Systems Ultimate Chuck Installation and Operations Manual
have low speed applications that require high grip
force (such as very large twist drills) and you have
recorded hydraulic pressures for the cylinder you are
using, increase this pressure 30% to get the same grip
force with your Ultimate Chuck as you did with the
simple wedge-hook chuck.
MAINTENANCE:
5.1 Disassembly and assembly of the chuck
WARNING
Never attempt to disassemble the chuck when it is
installed on the lathe. Always remove the chuck from
the lathe before starting any disassembly.
See 6.1 in the OTHER INFO in section of this manual for
parts identification.
• Remove base jaws. Position chuck on edge or
suspend from a crane.
• Loosen the screws (26) several threads and strike the
screw heads lightly with a rubber mallet. By doing
this, the backplate (2) will come loose from the
chuck body. Remove screws (26) and remove the
backplate (mark the position of the chuck backplate
to the chuck body).
• Lay chuck on its face.
• Remove three pins (14) with springs and balls
(43&38).
• Remove three Cam Bolts (11) by rotating them to
release ball (39) and pulling out.
• Pull straight up on actuator (3) and lift actuator
along with three wedge bar assemblies (6). Remove
wedge bar assemblies, remove actuator.
• Note that wedge bars are numbered 1,2,3 and must
go back in the wedge bar pockets for the jaw
guideways with the same number 1,2,3.
• To disassemble wedge bar assemblies, pull up on
Rack (8) and remove. Keep Rack (8) with the
wedge bar it came out of and put back into the same
wedge bar to avoid any change that would require
previously bored soft jaws to be rebored. On smaller
chucks, (9) can be pulled directly out of the bottom
of the wedge bar. Larger sizes have a screw in the
wedge bar in the area of (17) to remove.
• Remove any remaining parts, but we recommend not
removing the Guide Bushing (15). Clean all parts
and check for damage. Before reassembling, lightly
grease with ATS K05 lubricant.
⇒ Use only original spare parts from ATS
Systems when replacing damaged
components.
Phone ATS Systems at 1-800 423-4651
Reassemble the chuck in the reverse order. Be
sure to get the correct numbered wedge bar
back into the correct pocket. Read Lubrication
section 5.2.1 below before putting Backplate
on..
5.2 Lubrication
5.2.1 Lubricating the chuck body. (See 5.2.2
for jaw guideway lubrication.)
The reliability of the chuck can only be guaranteed
if the maintenance requirements in these operating
instructions are followed exactly. In particular,
attention must be paid to:
• Lubrication: Only ATS K05 grease should be
used. (Unsuitable lubricants can reduce the
clamping force by more than 50%). The
chuck should be greased each 24 hours of
operation under normal conditions. See table
in 5.2.3.
• All surfaces that require lubrication must be
reached. (The close fits of mating parts
require a high injecting pressure. For this
reason a high pressure grease gun should be
used). Important: Grease must be injected
into the three fittings on the face of the chuck
when the chuck jaws are fully opened (jaws
outward from centerline). It is only in this
position that lubrication will properly
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