THE KETT TOOL COMPANY 5055 Madison Road, Cincinnati, Ohio 45227
(513) 271-0333 fax (513) 271-5318 www.kett-tool.com
INSTRUCTIONS FOR THE CARE OF
THE KETT 46-20R SHEAR HEAD
CAUTION
Disconnect Power Unit
Before Servicing Tool
PARTS LIST
46-21R
Center Blade
42-23 Shear Housing
41-24 Eccentric Bearing Assembly
92-27-2B Spacer Bushing
92-28 Cap Screw (3)
92-31 Knurled Insert (3)
46-22R Side Knife, Left
46-05 Spacer
60-25 Thin Washer, Large
92-27-1 Spacer Bushing
60-29 (150-4) Allen Wrench
DISASSEMBLY:
To remove the shear head from the
motor loosen three cap screws (92-28). Remove shear
head from motor by pulling head fi rmly forward. Slight
tapping with a mallet may be required if head does not
slide off easily.
To remove cutter blades from shear head re-
move three cap screws (92-28) from shear housing (42-
23). Be careful not to lose rear spacer bushing (92-27-1)
when removing the middle cap screw. Remove center
blade (46-21) from shear housing by tapping blade gen-
tly rearward. Be careful not to lose spacer bushing (92-
27-2B) from hole in center blade. Side knife (46-22R)
will now drop out of the shear housing.
To remove eccentric bearing assembly (41-24)
from shaft use an appropriate wrench to loosen eccen-
tric nut by turning counter clockwise.
ASSEMBLY:
To install eccentric bearing assembly (41-
24) onto shaft, make sure the large thin washer (60-25)
is fi rst inserted over the shaft. Screw eccentric bear-
ing assembly on to shaft and tighten with appropriate
wrench. Lubricate bearing with a good grade of bearing
grease.
To install cutter blades into shear housing (42-
23) place the side knife (46-22R) into position in the
shear housing (42-23). Insert center cap screw (92-28)
through the side knife (46-22R) with rear spacer bushing
(92-27-1) between them and start cap screw into thread
just enough to hold blades in place. DO NOT TIGHTEN.
Insert spacer bushing (92-27-2B) into hole in center
blade (46-21) and lubricate with Molybdenum Disulfi de
grease (264-2) or equivalent. Install center blade into
shear housing by tapping blade gently forward using a
drift to line up hole in center blade with forward holes in
housing. Insert and tighten forward cap screw (92-28)
making sure spacer bushing (92-27-2B) in center blade
stays in position. Apply Molybdenum Disulfi de grease
(264-2) or equivalent to clevis or yoke in center blade
where it rides on the eccentric bearing assembly. Insert
rear cap screw (92-28) into shear housing, but do not
completely tighten.
To install shear head assembly onto drive motor
make sure all cap screws (92-28) are loosened about
three or four complete turns. Spread shear housing
(41-23) slightly using a spreader (drift) near the rear cap
screw (92-28). Place shear head onto unit, tap left side
knife rearward as far as it will go, and tighten cap screws
to 40-45 inch pounds. It may be necessary to gently tap
the shear head into place if it does not readily slip onto
the nose of the power unit.
WARNING: THE KETT TOOL CO. CANNOT ASSUME RESPONSIBLITY FOR DAMAGE TO OR
MALFUNCTION OF A KETT SHEAR HEAD USED IN COMBINATION WITH ANY DRILL OTHER
THAN THOSE REGULARLY SUPPLIED BY US.
60-29
42-23
92-31
92-28
46-05
46-21R
46-22R
60-25
41-24
92-27-1
92-27-2B
