4
Twin City Engineering Supplement 895
Table 2. TSL Wheel-Funnel Overlap
SIZE
402
445
490
542
600
660
730
807
890
A
40.25
44.50
49.00
54.25
60.00
66.00
73.00
80.75
89.00
B
1.03
1.13
1.25
1.38
1.56
1.69
1.88
2.09
2.28
C (CL 1)
16.23
17.92
19.64
21.70
24.08
26.42
29.19
32.30
35.66
C (CL 2)
16.23
17.92
19.64
21.70
24.08
26.42
29.19
32.30
35.66
C (CL 3)
16.30
17.98
19.70
21.83
24.14
26.48
29.25
32.36
35.70
SIZE
122
150
182
200
222
245
270
300
330
365
A
12.25
15.00
18.25
20.00
22.25
24.50
27.00
30.00
33.00
36.50
B
0.31
0.38
0.56
0.63
0.69
0.75
0.88
0.97
1.06
0.94
C (CL 1)
4.69
5.86
7.36
8.00
8.89
9.86
10.91
11.89
13.31
14.72
C (CL 2)
4.72
5.86
7.42
8.06
8.95
9.86
10.91
11.89
13.31
14.72
C (CL 3)
—
—
7.48
8.13
9.08
9.92
10.97
12.14
13.38
14.78
C
B
A
Note
: Use “B” dimension for positioning wheel.
Table 3. QSL Wheel-Funnel Overlap
B
A
C
Note
: Use “B” dimension for positioning wheel.
SIZE
150
165
182
200
222
245
270
300
330
A
18.25
20.00
22.25
24.50
27.00
30.00
33.00
36.50
40.25
B
0.56
0.63
0.69
0.75
0.88
0.97
1.06
0.94
1.03
C
6.19
6.75
7.56
8.31
9.13
10.19
11.19
12.38
13.63
SIZE
365
402
445
490
542
600
660
730
A
44.50
49.00
54.25
60.00
66.00
73.00
80.75
89.00
B
1.13
1.25
1.38
1.56
1.69
1.88
2.09
2.28
C
15.13
16.63
18.38
20.25
22.31
24.63
27.25
30.00
Operation Checklist
□
Verify that proper safety precautions have been
followed.
□
Electrical power must be locked off.
Check fan mechanism components:
□
Nuts, bolts, setscrews are tight.
□
Mounting connections are properly made and
tightened.
□
Bearings are properly lubricated.
□
Wheel, drives and fan surfaces are clean and
tightened.
□
Rotating assembly turns freely and does not rub.
□
Drives on correct shafts, properly aligned, and
properly tensioned.
Check fan electrical components:
□
Motor is wired for proper supply voltage.
□
Motor was properly sized for power of rotating
assembly.
□
Motor is properly grounded.
□
All leads are properly insulated.
Trial “bump”:
□
Turn on power just long enough to start assembly
rotating.
□
Check rotation for agreement with rotation arrow.
□
Listen for any unusual noise.
Run unit up to speed:
□
Bearing temperatures are acceptable (<200°F) after
one to two hours of operation.
□
Check for excess levels of vibration. Filter in readings
should be 0.15 inches per second or less.
After one week of operation:
□
Check all nuts, bolts and setscrews and tighten if
necessary.
□
Re-adjust drive tension if necessary.
