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25
MAINTENANCE
Your BlackStone Pump is designed to give you years of trouble-free
service. Maintenance should be the preventative type, that is,
periodic cleaning and inspecting for any damage or leakage.
CLEANING THE SUCTION, DISCHARGE AND INJECTION
VALVES
Remove the valves from the pumphead, the injection fitting and
the feed.
Keep the suction and discharge valves separated as they are not
interchangeable.
Disassemble each valve and clean it with a neutral liquid. Inspect
the PVDF springs.
After cleaning the glass balls, inspect them for any excessive wear
due to abrasion from the chemical. Replace if necessary with parts
from
HI 721102
,
HI 721103
,
HI 721104
and
HI 721105
.
When reinstalling the valves into the pumphead, tighten by hand
first and then with a wrench ¼ to ½ turn.
INSPECTING THE HOSE
(if used as supplied with the pump)
Inspect to see if the hose has worn out or weakened due to the
chemicals. Pay particular attention for any signs of abrasion or
discoloration. Also check the connectors to ensure they are tight.
Replace if necessary with parts from
HI 720032
.
Summary of Contents for BL1.5
Page 11: ...11 VALVE HOSE ASSEMBLY DIAGRAM...