
4.
Maintenance
The air drives of all fluid pumps are pre-treated with high-performance grease and do not
require any other kind of lubrication. In order to extend the service life of the piston rod
sealing the grease filling should be topped up after 14 days of operation. Use the
lubricating nipple at the bottom cap. Only during overhauls of the pump, the servovalve
and drive piston should be treated with acid- and silicon-free grease. We recommend the
use of a MAXIMATOR grease.
5.
Repair instructions
Please, use for a necessary repair only original MAXIMATOR spare parts, otherwise the
proper functioning may be impaired. Ensure the highest possible level of cleanliness
during servicing work at the pump in order to ensure both the proper functioning and
service lives of the precision-machined parts.
Ensure the same torques for the nuts of the four stud bolts during assembly in order to
avoid distortions of the top and bottom caps.
5.1
Replacement of high-pressure sealing
Depressurise the pump and disconnect all tube connections from the pump.
Dismantle the pipeline 1 (Item 58).
Remove the four hexagon socket screws (Item 69).
Now the pump head (Item 71) can be drawn off to the front.
After dismantling of the pump head the two dowel pins (Item84 and 85) can be
removed.
Now the pressure section (Item 1) can be dismantled.
Then the HP piston can be unscrewed.
The sealings can be replaced.