GVM-VAC GVM8000, Руководство пользователя

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GVM-VAC
www.gvm-vac.com
Service Section
5.4 Impeller Installation and Removal, continued
Before removing the blower housing
face remove the negative battery cable to
ensure unit can not be started.
INSTALLATION
1. Clean the shaft of any debris and remove any rust using a 120
grit emory cloth.
2. Using an overhead crane or other suitable lifting device lift the
impeller on to the shaft. Turn the impeller to align the key-
ways of the shaft with the keyway in the impeller.
3. Insert key into the keyway. A light sanding of the keyway may
be needed, as well as a few light blows with a rubber mallet.
4. apply a generous coat of anti-sieze compound to the outside
of the bushing being sure to cover any area that will come in
contact with the impeller.
5. Tap the bushing onto the shaft aligning the keyways.
6. BELT DRIVE UNITS: Align the bushing and key to be flush
with the end of the shaft (Fig 1).
7. DIRECT DRIVE UNITS: The bushing and key should pro-
trude from the shaft about 1/2 inch (Fig. 2).
8. Put the 3 bolts into the non-threaded holes and drive them into
the impeller holes evenly. Alternate between the three bolts as
you drive the bolts in. Torque to 40 to 50 lbs/ft. There should
be a gap of 3/8” to 1/2” between the bushing and the impeller.
IMPORTANT: Slowly spin the impeller by hand making sure that
the back of the impeller is not hitting any of the bolt heads located
at the back of the blower housing.
9. If the bushing has a set screw on it, tighten the screw snug with
an allen wrench (Fig. 3). This will help keep the key in place.
10. Install the shaft protector on to the shaft (Fig. 4 or 5).
Fig. 1
Fig. 2
Fig. 3
Direct
Drive
Belt
Drive
Fig. 4
Fig. 5