Hitachi ZAXIS 450LC-3 Operator's Manual page 292

5. Turn lubrication mode switch (3) to the OFF Position.
6. Loosen check valve (7) or trigger the grease gun to
release the remaining pressure from the pump unit and
the hoses in the hose reel (The pressurized grease may
be slightly discharged from check valve (7) drain port at
this time.)
MAINTENANCE
7
7-22
3
M1J1-01-032
M16J-OP9-001