Carrier 39G handleiding
Handleiding
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Deflection force (Newton)
SPZ SPA SPB SPC
min. max. min. max. min. max. min. max.
63-80 12 19 - - - - - -
90-122 16 24 19 29 - - - -
125-160 19 28 26 40 33 50 - -
170-224 19 29 30 46 43 64 58 87
250-355 - - 32 48 51 77 79 119
400-630 - - - - 55 82 103 154
7.2 Field Supplied Fan Motor & Drive
Ensure that the motor is of the correct HP/kW
frame size & electrical characteristics.
7.3 Installation of Pulleys
Install the pulley on the fan shaft and motor shaft
for minimum overhang. Exercise care when mounting
the pulley to the fan shaft. Excessive force may
result in bearing damage. Remove rust preventing
coating or grease from the shaft. Make sure that
the shaft is clean and free of burrs. Lubricate the
bore of the pulley before installing. Ensure that
the fan and motor shafts are parallel and level. Use
straight edge or a piece of string to check the
7.0 FAN MOTOR & DRIVES
The 39G unit will be supplied with or without the
fan motor and drive from the factory. In either case,
a motor base will be supplied installed on the fan
and motor base channel.
7.1 Factory Installed Fan Motor & Drive
All motors and pulleys are mounted with only a
“rough” alignment. The installer is responsible
for the final alignment as described in the
procedure.
Fig. 10 Sheave Alignment
alignment of fixed pitch pulleys. If the pulleys are
properly lined up, the string will touch them at the
point indicated by the arrows (Refer Fig 10). For
variable pitch pulleys, use a block of wood or other
material to compensate for the difference in pulley
width. To check the alignment of these pulleys, make
sure that the centre lines of both pulleys are in line
and parallel to the (“H” frame) bearing support channel.
The variable pitch pulley is normally installed on
the motor shaft.
7.4 Proper Belt Tension
(i) Correct tension of a V-Belt drive is carried out as follows:
(a) Fix the belts into the grooves and increase the centre
distance until the belts are snug. Note : Never lever
belts over sheaves.
(b) Operate the drive for a few minutes and observe the
“bow” in the slack side. Tighten until only a slight “bow”
appeares in the slack side of the belts while they are
in operation under load.
(c) During normal operation a V-Belt will seat itself in
sheaves grooves and will require periodical check
to maintain tension. The seating occurs more rapidly
during the first 24 hours of operation, and it is very
important to check drive tension carefully during this
period and to retension as required.
Deflection Force K (Newton)
(ii) For drives where tension may be critical factor, the
following procedure is recommended:
(a) Using the diagram shown below, measure the
span length of the drive.
(b) At the centre of the span, apply a force K (perpendicular
to the span) large enough to deflect the belt 15mm
per 1 meter of span.
(c) The deflection force for any V-belt should be within
the minimum and maximum force shown in the table.
When the tension drops to the minimum value,readjust
to the maximum value.
Cross section
Diameter of
smaller sheave
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Productinformatie
| Merk | Carrier |
| Model | 39G |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 3661 MB |
