1.1 ADJUSTING THE MUL-20 FOR STRAP
WIDTH
The TEKNIKA MUL-20 can be adjusted for strapping with widths
of 1/2", 5/8" or 3/4". The tool is equipped with one of two sets of
reversible strap guides. With parts number 23, 47, and 50 the
tool can be set for use with either 1/2" or 5/8" strapping. With
parts number 60, 62 and 64 the tool can be set for use with 5/8"
or 3/4"strapping. Guide sets are stamped “13”for 1/2", “16”for
5/8" and “19”for 3/4". To change strap width, the three strap
guides must be reversed, as follows:
a) Remove Screws 39 from the front and rear of the tool. Turn
Front and Rear Guides around and replace the screws. Make
sure that the same stamped numbers are exposed on each
Guide: “13” for 1/2" strap, “16” for 5/8" strap, and “19” for 3/4"
strap.
b) Unscrew 53 and remove Cover 52 and the Strap Guide.
Remove Pin 51 and insert it into the same hole on the opposite
side of the Strap Guide. Reverse the Strap Guide and replace it
in the tool so that the free end of Pin 51 enters the hole in the
Arm 54.Put the guide on the Pin 49. Replace Cover 52 and
tighten the Screw 53. The exposed stamped number on the
Strap Guide should match the numbers on the Front and Rear
Guides.
NOTE: Check the proper execution of Step 1.1 b) by
squeezing together the feedwheel support handle 68 and
the sealer handle 66. The strap guide should pivot upward
along with the feed wheel assembly.
1.2 ADJUSTING THE MUL-20 FOR STRAP
THICKNESS
The MUL-20 can be used with regular duty strapping from .015”
to .027”thick; and high tensile strapping up to .025”thick. The
tool can be easily adjusted for strap thickness by loosening
Screw 53 and rotating the Adjustment Plate 11 on the side of the
tool. Rotating the Adjustment Plate 11 will change the depth of
the cutter. The Adjustment Plate 11 serves as a wrench to turn a
hex-end shaft running through the tool. The opposite end of the
shaft is round and has a line scribed on it, as shown below.
When the line points straight up, the cutter is at its shallowest
position; when the line points straight down the cutter is
deepest. The usual setting is about half way between these
extremes.
If the Adjustment Plate 11 is at the end of its travel, remove Screw
53 and reposition Adjustment Plate 11 so that it is within the
desired adjustment range. Replace Screw 53 and repeat the above
steps until the desired cutting depth is reached.
NOTE: The tool is set up properly if, after interlocking
the strap, the upper strap is cut off cleanly and there is a
slight mark on the lower strap.
1.3 ADJUSTING THE FEEDWHEEL
CLEARANCE
The MUL-20 is adjusted from the factory so that there is
approximately .005" clearance between the Feedwheel 38 and
the Clutch Plug 22 (Bottom Gripper). Setting them close
together insures that there is enough pressure to enable the
Feedwheel 38 and Clutch Plug 22 to bite into the strapping, and
operate without slipping.
At the same time, by maintaining a small clearance between the
Feedwheel 38 and the Clutch Plug 22, they are prevented from
grinding against each other if the tool is ratcheted without having
strapping under the Feedwheel. This maximizes the life of those
two parts.
Should it become necessary to adjust the clearance between
the Feedwheel 38 and Clutch Plug 22, it is easy done, as
follows:
a) Loosen Nut 59 to the right of the rear strap guide. This frees
the Gripper Adjustment Screw 67.
b) Turn the tool up on its nose, with the bottom of the tool facing
you, and squeeze the Feedwheel Support Handle 68. This will
lift the Feedwheel Support Handle 68 off the Gripper Adjustment
Screw 67.
c) Turn the Gripper Adjustment Screw 67 clockwise to decrease
and counterclockwise to increase the gap between the
Feedwheel 38 and the Clutch Plug 22.
d) When the gap is properly adjusted, re-tighten the lock Nut 59
to keep the adjusting screw from moving while the tool is being
operated.
NOTE: The gap is set properly when a single piece of
strapping is gripped tightly between the Feedwheel and the
Bottom Gripper, but a piece of paper slides easily between
the Feed Wheel 38 and Gripper 22.
For Parts & Service 1-877-862-6699
