Count Controlled Tester
Setup and Operation

Now - measure - wear quality of finished surfaces
No paint build up on abrading media to affect accuracy of tests

Important Notice

The 4 nylon bearings for 3/16" brass rollers in 'N' frame, must not clamp edges of paper.

Likewise - feed off reel 'Q' must not restrict paper or tape movement. (some very light side clamping pressure may be required if paper/tape wanders on 'O' ring wheel.)

Before each day's use: Remove 'O' Ring assembly and clean residue off of hub, wheel, and all contact surfaces.

It is highly advisable to ignore the use of the surface gage until the technician is familiar with this machine. Refer to surface gage.

When changing between our two widths of abrading materials, it is only necessary to put in or take out the core hubs and spacing washers 'T' & 'S' (provided) at the front and rear reels 'Q' & 'D' to keep C/L of abrader on the C/L of machine. This is not necessary on testers #977 and higher.

Two counter weights 'R' are provided for 55 and 175 gram loads for testing hot stamped bright foil, or other soft finishes.

In using the 1/4" wide tape, if you discover that the dull side (abrading side) of tape is wound to the outside of reel, then twist tape to have dull side down. Don't abrade with the gloss side of Tape.

Note: Dull side of tape is 3 or more times more abrasive than gloss side. We have received a difference of opinion on this subject.

Level machine base plate by observing 2-way level and by adjusting feet screws.

You are now ready to setup specimen

  1. With sliding pin 'F' under rocker arm, stop motor when cam is near lowest point, so that rocker arm rests on sliding pin.

    Note: There must be clearance between cam and cam follower. There must be no paper between rocker arm and sliding pin.

  2. Mount flat specimen with two parallel surfaces to box anvil 'P' with either single or double faced tape, or by using two spring clips. Mount specimen with non-parallel surfaces to universal platen 'A'. Mount specimens that are round to the universal vise 'B' by removing platten plate 'A'. On these last two methods, to get test area parallel to base plate, use the machinist indicator 'Z' on the X & Y axis of the test area.
  3. Lower vertical shaft 'K' (Loosen both allen and thumb screw securing shaft), so that the abrasive is confined between the 'O' ring and specimen, then lock the two screws by HAND onto the flat of the shaft. When raising shaft it helps to compress spring slightly. Don't compress 'O' ring or raise rocker arm.
  4. Pull sliding pin 'F' out from under rocker arm.
  5. Hold rocker arm up to prevent paper touching specimen. Jog motor until cam will support rocker arm without paper on specimen.
  6. Turn counter to zero, and you are ready to run tests.

You are now ready to start test

Turn motor on. On up stroke of rocker arm, watch test area for wear through to substrate (contrasting color) if using STANDARD INTERMITTENT CYCLES. For continuous cycles, move cam follower off cam. If using continuous cycles, then stop motor, raise rocker arm by hand and inspect, take slack out of paper, lower rocker arm and resume test.

Counter reading is end point in cycles.