11
8. MAINTENANCE
1. Check the pressure produced by the handwheel detent periodically, it should over-
come the pressure of the spring of rod. Perform the check with weights added to
the base weight to prevent the lever from rising. The frequency of checking de-
pends upon the operating conditions.
2. The frictional surfaces of the tester shall be lubricated twice a month.
3. Use the dust cover after testing.
4. Remove the weights and the base weight after test. Fix the lever to prevent it from
damage in transportation.
5. Switch off power supply when the tester is not in use or during maintenance.
6. Check the indenter assembly. Clean any oil from the surface of the ball and the
ball holder before installing. Spread a little Vaseline on the spherical indentation of
the ball holder. Install the steel or tungsten carbide ball, and screw on the indenter
cap.
7. Adjust speed of load application and removal, if needed, by opening the back
panel and adjusting the up and or down flow controls. (See diagram on Page 8.)
9. CONTACT INFORMATION
Contact this location for general or sales questions as well as self-repair
questions, parts, billing etc.
205 Keith Valley Road
Horsham PA 19044, USA
Tel:
215-355-6900
Fax:
215-354-1803
[email protected]
www.hardnesstesters.com
To schedule a service call anywhere in North America contact
Newage Testing Instruments Service 317-329-4300