SPX Cooling Technologies TG MAG58-80 3.18.7.7Guarding of moving parts, Alignment tolerances

1Place a ruler (A) on the coupling. Remove or add as many shims as is necessary to bring the electric motor to the correct height so that the straight edge touches both coupling halves over the entire length, see figure.

2Repeat the same check on both sides of the coupling at the height of the shaft. Move the electric motor so that the straight edge touches both coupling halves over the entire length.

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3To be certain the check is also undertaken using external callipers (B) at 2 corresponding points on the sides of the coupling halves, see figure.

4Repeat this check at operating temperature and spend time achieving minimum alignment deviation.

5Fit the protecting guard. See the figure below and the corresponding table for the maximum allowed tolerances for aligning the coupling halves.

Alignment tolerances

External diameter	Va				Vamax	- Vamin	Vrmax
of coupling [mm]					[mm]		[mm]
	min [mm]		max [mm]
81-95	2	5*	4	6*	0.15		0.15
96-110	2	5*	4	6*	0.18		0.18
111-130	2	5*	4	6*	0.21		0.21
131-140	2	5*	4	6*	0.24		0.24
141-160	2	6*	6	7*	0.27		0.27
161-180	2	6*	6	7*	0.30		0.30
181-200	2	6*	6	7*	0.34		0.34
201-225	2	6*	6	7*	0.38		0.38

* = coupling with spacer

Belt drive

Belt drives also increase the loading on the shaft end and the bearings. Therefore, certain limitations must be imposed on the maximum load of the shaft, viscosity, pumping pressure and speed.

See section 3.18.3.2 Radial load on shaft end.

3.18.7.7Guarding of moving parts

Before commissioning the pump, place a protective guard over the coupling or belt drive. This guard must comply with the EN 953 design and construction standard.

For pumps operating at temperatures above 100°C, ensure that bearing bracket and bearings are cooled sufficiently by the surrounding air.

3.18.7.8Check temperature censor on can

In case the pump is provided with a PT100 element,

the electrical connections must be made by an
approved electrician.	PT100

		Connection for PT100
		25
		Pasta for better contact
TG MAG	X
15-50	75	X
23-65	75
58-80	80
86-100	80
185-125	100

A.0500.551 – IM-TGMAG/02.00 EN (02/2008) 37