78 Operation Guide
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Installation

bulletMounting: For rear mounting the model 78 has (4) tapped holes, and for foot mounting the 78 has (4) through holes both of which require (4) 10-32 screws to mount marker into position. The model 78 markers require a sturdy level platform for mounting. For optimum power, the marker should be mounted so that the stamp face is .8 to .9 inches away from the part to be marked.
bulletAir Requirements: Model 78 is air powered for both forward and return stroke. CMT recommends 3/8" minimum shop airline. Maximum force is 100 psi, minimum operating pressure is 20 psi.
bulletAdjustments: Increased air pressure marks deeper, and decreased air pressure marks lighter. To regulate marking pressure adjust regulator on FRL (Filter/Regulator/Lubricator combo unit)*

                                *sold separately

Maintenance

 Shut off all air and electrical power, prior to performing any and all maintenance.

bulletLubrication: Add 10W "light" industrial hydraulic oil to lubricator bowl and adjust oil flow to approximately 1 drop for every 30-50 cycles.
bulletAir Filter:Check and clean /change as required. The frequency of cleaning/changing is dependent on environment and plant air system. Do not allow excess water to fill filter bowl.

Pneumatic Controls          

Electrical Sequence for double solenoid valve

  1. To advance marker - energize solenoid "A"

  2. To return marker and reset - de-energize solenoid "A" and ENERGIZE solenoid "B"

Electrical Sequence for spring return valve

  1. To advance marker - energize solenoid "A"
  2. To return marker and reset - de-energize solenoid "A" after part is marked

Speed control adjustment

Adjust speed control "R" to control speed of retract motion. DO NOT install speed control on forward (rod) port of marker.

Note: For most efficient operation, electrical signal energizing solenoid "A" should be very short, approximately .06 to .10 seconds

 

For ease of installation please order Retro-Fit Valve Pak

Files to Download

Adobe and ACAD files Available for downloading from the CMT Library
 

 

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Columbia Marking Tools Inc: 27430 Luckino Dr, Chesterfield MI 48047

telephone:586-949-8400 fax:586-949-8401