Horizon Fitness APC-61 Manual page 59

3-9 Release of Locked Knife
3. Next, operate the electromagnetic valve by
hand to lower the knife holder.
[Top view of electromagnetic valve]
2 4
1 3
[Front view of electromagnetic valve]
Press 2 shown in the drawing above with a
thin stick. The knife lowers by being
pressed. Repeat this procedure and lower the
knife to the lower limit position.
4. Put washer to the left most screw of the
knife.
5. Turn off the hydraulic pressure and power
switch. Then remove the ferrous piece put in
the step 2.
6. When the power switch is turned on and
hydraulic pressure off again, the knife lift to
the upper limit position.
7. Step on foot pedal and lower clamp to check
whether there is scratch on the clamp. When
there is large scratch, shave off the rising
part of the scratch with file.
8. Fix the front and rear covers.
3-11
For electromagnetic valve
When pressing 4, clamp lowers.
When pressing 4 and 2, knife lowers.
When pressing 4 and 1, knife lifts.
When pressing 3, clamp lifts.