MAY 2019
CMT-130TC Book Trimmer
4-19
4. Repair/Adjustment Procedures
ADJ 4.14 Counterbalance Valve
The knife hydraulic cylinder has a counterbal-
ance valve attached to the bottom port (Figure
4-29). The counterbalance valve provides
smooth operation of the knife assembly as it
moves down. If improperly adjusted, the knife
assembly will vibrate as it moves down.
Initial Actions
Check that the system pressure is set to
1,800-
2,000 PSI
before making these adjustments.
Use ADJ 4.13 Hydraulic System Pressure to
check system pressure.
Procedure
1. Open the rear door and loosen the lock nut
on the counterbalance valve.
2. Close all doors then switch the main power
ON and main air ON.
3. At the touch screen on the front console,
press the “Setup” button to bring up the
setup options screen. The “Parameters” tab
should be active. Now press the “Enable
Cut Cycle” button near the lower right corner
of the screen.
4. Remove the lower left door panel and locate
the pressure gauge on the hydraulic power
unit. Have an assistant press the green start
button to initiate a cut cycle. Monitor the
pressure gauge as the knife moves down.
As the knife is moving down (without a book
in the machine), the pressure gauge should
read approximately
900 PSI
.
5. To adjust the counterbalance valve, loosen
the lock nut then turn the adjustment screw
counter-clockwise to increase pressure or
clockwise to decrease pressure. Adjust the
screw until the valve operates consistently at
900 PSI
.
6. Tighten the lock nut on the valve. Close
rear door.
Figure 4-29. Counterbalance Valve
Summary of Contents for 130TC-A-160000
Page 10: ...MAY 2019 Introduction x CMT 130TC Book Trimmer NOTES...
Page 140: ...MAY 2019 4 Repair Adjustment Procedures 4 34 CMT 130TC Book Trimmer NOTES...
Page 195: ...MAY 2019 CMT 130TC Book Trimmer 5 55 5 Parts List PL 5 54 Std Hand Feed Elec EE 3342...
Page 214: ...MAY 2019 5 Parts List 5 74 CMT 130TC Book Trimmer NOTES...
Page 238: ...MAY 2019 7 Wiring Data 7 2 CMT 130TC Book Trimmer WD 7 1 Trimmer Schematic 230 VAC E 3496...
Page 239: ...MAY 2019 CMT 130TC Book Trimmer 7 3 7 Wiring Data WD 7 2 Trimmer Schematic 120 VAC E 3496...
Page 240: ...MAY 2019 7 Wiring Data 7 4 CMT 130TC Book Trimmer WD 7 3 Trimmer Schematic 53 VAC E 3496...
Page 241: ...MAY 2019 CMT 130TC Book Trimmer 7 5 7 Wiring Data WD 7 4 Trimmer Schematic 19 VAC E 3496...
Page 242: ...MAY 2019 7 Wiring Data 7 6 CMT 130TC Book Trimmer WD 7 5 Trimmer Schematic 9 VAC E 3496...
Page 243: ...MAY 2019 CMT 130TC Book Trimmer 7 7 7 Wiring Data WD 7 6 Trimmer Schematic 75 VDC E 3496...
Page 244: ...MAY 2019 7 Wiring Data 7 8 CMT 130TC Book Trimmer WD 7 7 Trimmer Schematic 24 VDC E 3496...
Page 245: ...MAY 2019 CMT 130TC Book Trimmer 7 9 7 Wiring Data WD 7 8 Trimmer Schematic 15 VDC E 3496...
Page 246: ...MAY 2019 7 Wiring Data 7 10 CMT 130TC Book Trimmer WD 7 9 Trimmer Schematic 5 VDC E 3496...
Page 247: ...MAY 2019 CMT 130TC Book Trimmer 7 11 7 Wiring Data WD 7 10 Elevator Schematic 120VAC E 3524...
Page 248: ...MAY 2019 7 Wiring Data 7 12 CMT 130TC Book Trimmer WD 7 11 Elevator Schematic 24VDC E 3524...
Page 249: ...MAY 2019 CMT 130TC Book Trimmer 7 13 7 Wiring Data WD 7 12 Tilt Schematic 120VAC E 3524...
Page 250: ...MAY 2019 7 Wiring Data 7 14 CMT 130TC Book Trimmer WD 7 13 Tilt Schematic 24VDC E 3524...
Page 253: ...MAY 2019 CMT 130TC Book Trimmer 7 17 7 Wiring Data WD 7 16 Stacker Schematic 120VAC E 3517...
Page 254: ...MAY 2019 7 Wiring Data 7 18 CMT 130TC Book Trimmer WD 7 17 Stacker Schematic 24VDC E 3517...
Page 255: ...MAY 2019 CMT 130TC Book Trimmer 7 19 7 Wiring Data WD 7 18 Exit Conv Schematic 120VAC E 3567...
Page 256: ...MAY 2019 7 Wiring Data 7 20 CMT 130TC Book Trimmer WD 7 19 Exit Conv Schematic 24VDC E 3567...
Page 257: ...MAY 2019 CMT 130TC Book Trimmer 7 21 7 Wiring Data WD 7 20 Exit Conv Schematic 5VDC E 3567...
Page 260: ...MAY 2019 7 Wiring Data 7 24 CMT 130TC Book Trimmer NOTES...
Page 281: ...MAY 2019 CMT 130TC Book Trimmer 8 21 8 Installation NOTES...