Pentax HP Manual Del Usuario página 66

6. MAINTENANCE
MECHANICAL SEAL (fig. 40)
Before reassembly, clean the sleeve, remove possible scuffing and scratches
by smoothing with an extra fine emery cloth.
Should the scuffing and scratches still be evident, replace the sleeve. Clean
the shaft, the counter-ring casing and remove all scale build up.
Reassemble following the reverse order of disassembly sequence.
For mechanical seal assembly, please follow these rules:
- take care and keep clean
- avoid damaging the sliding surfaces and the O-rings
- while assembling the seal, it is possible to reduce the friction by pouring water
or white spirit on the shaft protection sleeve.
6.4 • PERIODIC MAINTENANCE
1 MONTH AFTER the installation, make sure that the fastening bolts are
correctly locked to the base fig. 41 and also check the suitability of con-
necting bolts to the flanges; furthermore check the correct operation of
the electric motor and pump assembly, including power input and gland
packing leakage.
EVERY 12 MONTH (Fig.42)
- check visually every component to ensure that there are no faults
or problems.
- an electrician must check the electric system, included the mo-
tor, cables, fluid level shutdowns, electric contacts and panel.
- it is advisable to check the electric motor to pump coupling.
- check the seals
- check the lubrication (oil and grease, see point 6.1).
ATTENTION! If the pump is to be left stationary for long
periods, it should be run at least once each month, to clear scale
build up and avoid rotor lock up.
Overhaul or repair of the electric pump must be carried out by the
manufacturer or by his authorized workshop, according to assembly
and disassembly manuals and respective lists of spare parts.
OK
31
Mechanic seal
Fig.40