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Operating Instructions
44
1096.0799 | VU / VH Series
10/2010
9.4.1.3
Impeller position VH 110-1600/VU 80-1600
Type
Adjustment dimension
[ l ]
VH 110-180
226.0
VH 300-400
326.5
VH 500/600
363.5
VH 800-1600
507.0
VU 80-220
226.0
VU 300/450
331.5
VU 351
325.5
VU 451
325.0
VU 500-600
364.0
VU 800-1600
517.5
Tab. 38 Impeller position VH 110-1600/VU 80-1600
L
Fig. 21 Impeller position VH 110-1600/VU80-1600
9.4.1.4 Shaft
bearing
clearance
Pump types VU 20 – 220, VU 351/451 and VH 20 – 400 are
equipped with sealed deep groove ball bearings. These bearings
are maintenance-free and need not be adjusted.
Pump types VU 300 – 1600 and VH 500 – 1600 are equipped
with spherical roller bearings. Versions with cylindrical bores
need not be adjusted. Spherical roller bearings are not mainte-
nance-free and must therefore be re-lubricated.
Spherical roller bearings with conical bore and C3 clearance
Type
Axial shift
withdrawal sleeve
Smallest
permissible
clearance
Min.
Max.
VU
300/450/500/600
VH 500/600
0.4 0.45 0.030
VU/VH
800/1200/1600
0.45 0.6
0.040
Tab. 39 Shaft bearing clearance
9.5 Lubricants
Lubrication grease:
High-temperature grease containing a polyurea-based thickener
by Fuchs (Renolit PU-FH 300).
Pump type
Amount of lubricant per
bearing [g]
VU 300/450/500/600
VH 500/600
8
VU 800–1600
VU 800–1600
15
Tab. 40 Lubricants