User Guide

25
SCHEDULED MAINTENANCE
After 50 hours
Tight the pump head screws with a torque force of 2.5 Nm (22"
lbf).
After 12 months
It is recommended to replace HI721102, HI721103 (suction and
discharge valves assemblies) as well as the O-rings. The LDPE hose can
also deteriorate over time and, for safety reasons, should also be
changed with HI720032.
After 24 months
It is recommended to replace HI721102, HI721103, HI720032
and HI721106.