Danfoss APP Series Installation, Operation And Maintenance Manual page 115

Installation
8.
Prior to installation, burrs and chips and
other impurities must be removed from
pipes and hoses, eg with a felt plug
9.
Fittings in screwed components to be
sealed with O-rings or bonded seals
10.
Correctly limited quantities of grease
prevent seizing
Impurities
Chips or other impurities in the system
may cause damage
Sealing
Using teflon tape or packing yarn in
joints may cause damage
Grease
Too much grease may develop
biofilm causing operational failures
11.
Assembly of coupling
The coupling must be easy and simple
to assemble (see product instruction)
12.
= min. 3 mm
Ensure always to have 3 mm distance
between coupling flanges
13.
Water supply
Fill system with water before starting
to ensure lubrication and cooling
Never use force when assembling the
coupling parts, as this will damage the
motor/pump
Coupling
0 mm
Insufficient distance and/or misalign-
ment between the coupling flanges
will damage the pump
Starting without water will cause
damage