Mount motor and coupling

Mount coupling housing.
Mount coupling half and parallel key to compressor shaft.
Shift coupling half onto compressor shaft until it is flush with the compressor shaft (KS900).
Tighten set screw of coupling half in order to fix coupling halve onto compressor shaft (KS900).
Mount motor. Twist coupling halves until they join together. Screw motor and coupling housing together.
Check the distance between the coupling halves and, if necessary, adjust it by shifting the coupling halve on the compressor shaft (loosen set screw KS900). Tighten set screw.
Evacuate compressor.
Open valves (suction gas side, discharge gas side, Economiser, refrigerant injection, oil supply).
Check tightness.

Risk of bursting due to excessive pressure!

The pressure applied during the test must never exceed the maximum permitted values!

Test pressure: 1.1-fold of the maximum allowable pressure (see name plate). Make a distinction between the high-pressure and low-pressure sides!

Switch on the compressor which is being worked on, or the entire system, if necessary.
Check function and tightness once again during operation.Funktion und Dichtheit nochmals in Betrieb prüfen.

Information

An oil leak rate of 0,8 cm³ per operating hour is within the tolerance.
During the running-in period of the new shaft seal (approx. 250 h) a higher oil leak rate may occur.

	A	B	C	D	E
KS900, D80-110	Ø 80	20	22	85,4	110
KS900, D70-110	Ø 70	20	20	74,9	110
KS900, D65-110	Ø 65	20	18	69,4	110
KS900, D65-80	Ø 65	20	18	69,4	80
KS900, D60-70	Ø 60	20	18	64,4	70
KS900, D55-70	Ø 55	20	16	59,3	70
KS900, D75-110	Ø 75	20	20	79,9	110
KS900, D80-80	Ø 80	20	22	85,4	80
KS900, D70-80	Ø 70	20	20	74,9	80

Connection positions
Connection positions
1		Compressor side
2		Motor side
3		Compressor shaft
4		Motor shaft

Dimensions (if specified) may have tolerances according to EN ISO 13920-B.

The legend applies to all BITZER couplings and includes connection positions that do not exist in every series.