03/12/2013
Z.R. Tool Inc. - ZL90 Manual
www.zrtool.com/html/ZL90Manual.html
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it sits in position shown in this drawing.
Figure 1E
Turn cam lever in a clockwise direction with fingers
until it sits in front of the cavity of the cam.
Important: Make certain that the roller (position 78) is
in its position.
Then install the housing cover and the sealing lever
making sure they sit properly and operate smoothly,
do not force.
To Replace The Lower Cutter (Position 55)
1. Remove cheese head machine screw (position 17) located on the underside of the housing
(position 58).
2. With small flat head screwdriver push out lower cutter ZL90 from its position.
3. Install and position new lower cutter ZL90 making sure the thinner end faces toward
outside of housing.
4. Reinstall cheese head machine screw with a drop of Loctite* No. 222 on the thread of each
screw.
To Replace the Punch ZL (Position 31)
1. Remove lever ZL (position 25) by loosening hexagon socket cap screw (position 24).
2. Remove woodruff key (position 29).
3. Remove lock housing assembly ZL by removing 4 hexagon socket cap screws (position 52)
and 2 hexagon socket cap screws (position 51).
4. Remove lock housing cover ZL (position 34).
5. Remove open link ZL (position 50) and link pin (position 48).
6. Remove punch ZL, replace with new punch ZL, then reinstall link pin and open link ZL.
7. Make certain that the area is clean and well greased with white grease. Attach lock
housing cover ZL. Then reattach lock housing assembly ZL to front of housing (position
58).
To Replace The Compression Spring (Position 68) and Ball (Position 67)
1. Remove housing cover ZL (position 66), by removing 4 hexagon socket shoulder screws
(position 64).
2. Remove spring holder ZL (position 69) by removing 3 cheese head machine screws (position
17A) from the inside of housing cover ZL.
3. Remove compression spring, then ball and replace with new in this order.
4. Reinstall spring holder ZL to housing cover ZL with cheese head machine screws and add a
drop of Loctite* No. 222 on the thread of each screw.
5. Important: Make certain that the roller (position 78) is in its position.
6. Reinstall housing cover ZL, then reinstall hexagon socket shoulder screws with a drop of
