Chapter D: Troubleshooting
80 Planmeca PlanMill 40 Technical manual
Pump is cavitating Prime pump:
2.11.1 "Circulation pump" on page 150
Air leak on suction side of
pump
Tighten suction fittings and suction hose clamps:
2.11.1 "Circulation pump" on page 150
High pressure override due
to blockage in the tubing
Remove debris from tubing, spindle housing, and nozzle caps:
2 "Maintenance procedures" on page 26
Vibration from pump stand Check for loose hardware and/or missing vibration bumpers:
2.11.1 "Circulation pump" on page 150
Vibration from side panels Check for loose hardware and/or missing vibration bumpers:
2.1.2 "Side panels" on page 96
Vibration from tank drawer Check for loose hardware:
2.1.4 "Tank drawer" on page 98
Leaking coolant
Excessive foaming Add defoamer to coolant.
Excessive foaming Clean tank, mushroom strainer, suction basket, and nozzle caps:
2 "Maintenance procedures" on page 26
Leaking at tubing fittings Tighten all fittings and secure any loose tubing with proper tie
down:
2.11.1 "Circulation pump" on page 150
Foaming coolant
High concentration of
coolant in tank
Empty tank. Refill with 1 gal water and coolant per instructions on
bottle label:
2 "Maintenance procedures" on page 26
Soap residue from recent
tank cleaning
Rinse tank thoroughly to remove any soap residue:
2 "Maintenance procedures" on page 26
Upper nozzle cap nozzles
blocked with debris
Clean nozzle cap nozzles:
2.7 "Cleaning collet and spindle caps" on page 35
Various block materials
create more foam than
others
Add defoamer to coolant per instructions on bottle label.
Various contaminants in
water supply (tap water)
Use di-ionized water instead of tap water.
Tank gasket damage
General wear Replace tank gasket.
Symptom Problem Solution