Lukas LH2 - Manual (Page 26)

26
11.2 Maintenance
Before performing maintenance work, clean the hand pump thoroughly.
After performing the maintenance work, you should carefully coat all metallic parts with oil
to prevent any corrosion.
Checks (Maintenance measures):
Perform a visual inspection of the hand pump at least once per month; in the case of
continuous use, once a week.
Visual inspection
Hand pump
• are all hydraulic connections still tightened,
• generally sealed, no leaks present (oil "sweat" has no effect on the operation),
• is damage to pump housings, valve blocks or attachment parts recognisable, especially
on the moving parts such as the piston rods,
• are all fluid levels within the prescribed tolerances,
• are all non-moving parts firmly attached,
• is there no corrosion,
• freedom of movement for the pump lever and the hand wheels
(check in the depressurised state),
• the couplings are easy to couple (if attached),
• are dust caps in place,
• are identification plate, all control decals, instruction decals, labels and warnings present
and legible.
Perform an operational check of the hand pump at least once per year; in the case of
continuous use, once every half year.
Operational check
• no suspicious noises,
• tests at maximum load.
Execution:
Place the hand pump on a solid base to operate. Then, connect a test manometer to the
supply hose line. Release the pump lever lock and close the discharge valve. Then, the
pressurisation to operating pressure corresponding to the specification on the identification
plate occurs.
NOTE:
In this test, an idle time of approximately 2 minutes needs to be observed and
the hand pump needs to be reloaded to operating pressure.
The resulting max. operating pressure must not drop by more than 5% after
10 seconds.
A test pressure gauge is available from the LUKAS line of accessories.