Operating Instructions & Parts Manual
Page 7
Maintenance
1. Be sure elevation screw and threaded collar are clean and lubricated. Lubricate with general purpose light duty
oil.
2. Keep top of leadscrew, collar and anvils clean and free of grease, oil, dirt, burrs, etc.
3. Use the test blocks periodically to check tester accuracy. Use an oil sharpening stone to remove the burrs from the
test blocks.
Fine adjustment for 3814
IMPORTANT!
Please follow these instructions before making any adjustments:
1) Be sure that ALL packaging material is removed from inside and outside of the
machine.
2) Be sure that all three weights are in the correct position on the weight bar.
3) Make sure the machine is placed on a very sturdy bench as any movement will likely
change calibration over time. Level the machine by releasing the weights and
making sure they move only straight up and down. Adjust feet to counteract any
front to back or side to side motion.
4) Install the Diamond Penetrator (chrome) in to the machine
5) Set weight dial on 150kg (1471n)
6) Clean off and install the small round anvil
7) Clean off all HRC (Rockwell C) test blocks and place one on the anvil for testing.
8) Make sure the Load/Unload handle is in the UNLOAD position. (towards front of
machine)
9) Take note of the dial. The large needle on the dial should be slightly to the left of the
HRC “0”. Digital Indicators should be set to zero.
10) Turn the handwheel to bring the test block up until it just touches the
Diamond.
11) Continue turning up the handwheel until the large needle on the dial goes
around 3 full revolutions. On the 3
rd
rev make sure to stop when the large needle is
TDC on the HRC “0”. Digital Indicators you should stop between 285 and 290 as side
bar raises to the dot.
12) Release the Load/unload handle back to load position. This puts the main
load on the machine. The large needle on the dial will begin to turn counter
clockwise.
13) Once needle stops moving (approx. 5-8 seconds) move the load/unload
handle forward to unload position and then take your reading. The black numbers
are HRC scale. Digital indicators wait till numbers stop and count dwell time.
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