Nordson HORIZON 200, Руководство по эксплуатации продукта

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Repair
7-25
Part 106913 − 04
E
2018 Nordson Corporation
Old-Style Bearing and Fan Shaft Adjustment
Part 177622 Rev A
1. Tighten the bearing mounting screws to 68 N S m (600 in.-lb).
2. Place a square across the motor and fan sheaves. Adjust the fan shaft
forward or back until the sheaves are parallel. This is a rough
adjustment and will have to be repeated later.
3. Install the fan and key on the shaft. Tighten the key set screw in the fan
hub to hold the fan in place. Install the retainer washer and screw on
the end of the shaft.
4. Square the shaft with the support and tighten the bearing-race set
screws. Torque the set screws to the torque values in Table 7-2.
Table 7-2 Recommended Torque Values for Bearing Set Screws
Set Screw Size
(in.)
Hex Key Size
(in.)
Torque
N
S
m (in.-lb)
Standard Ball Bearing Stainless Steel
#10
3
/
32
3.4 (30) 2.8 (25)
1
/
4
1
/
8
7.9 (70) 6.8 (60)
5
/
16
5
/
32
15.8 (140) 13.2 (117)
3
/
8
3
/
16
24.4 (216) 23.3 (206)
5. Install the inlet cone and adjust the fan overlap as described in the Fan
Replacement procedures.
6. Tighten the fan sheave bushing screws to the torque values in the
Sheave Replacement procedure. Use the square to make sure the
sheaves are parallel.
7. Install the V-belts on the sheaves and adjust the belt tension as
described in the V-Belt Replacement procedure.
8. Turn on the system electrical power and start the exhaust fan. Make
sure the fan is not rubbing against the inlet cone. If you hear a rumbling
noise coming from the bearings, stop the fan, lock out power to the
system, and check the fan shaft alignment.