Larkin XUEF-100, Инструкция по установке, эксплуатации и обслуживанию

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Utility Fans 10
Wheels must rotate freely and not rub on the inlet
cone. Model XUEF(D)-BI (backward-inclined) wheels
overlap the inlet cone. There is a gap between
the inlet cone and wheel on model XUEF(D)-FC
(forward-inclined). Refer to the tables for the proper
dimension.
Radial Gap and Alignment
Efficient fan performance can be maintained by
having the correct radial gap, overlap and wheel
alignment. These items should be checked after the
fan has been in operation for 24 hours and before
start-up when the unit has been disassembled.
Radial Gap: Adjust inlet cone position such that the
radial gap between the wheel cone and inlet cone is
evenly distributed around the wheel.
Radial gap is adjusted by loosening the inlet cone/
ring bolts and centering the cone/ring on the wheel.
If additional adjustment is required to maintain a
constant radial gap, loosening the bearing bolts and
centering the wheel is acceptable as a secondary
option.
Overlap: Overlap is adjusted by loosening the wheel
hub from the shaft and moving the wheel to the
desired position along the shaft.
The transition between the inlet cone and wheel
should be as shown; there is a smooth feel to the
profile when moving from one component to the
other.
Method for Centering Wheel: On belt drive units,
centering can be accomplished by (a) loosening
the inlet cone bolts to move the inlet cone or by (b)
loosening the bearings in order to move the shaft.
Wheel and inlet cone overlap can be adjusted by
loosening the wheel hub set screws and moving the
wheel to the desired position. Tighten all fasteners
and set screws securely and realign drive pulleys
after adjustment.
Wheel Rotation
Rotation direction of the wheel is critical. Incorrect
rotation will result in reduced air performance,
increased motor loading and possible motor burnout.
Check wheel rotation by momentarily energizing the
unit and noting if rotation is in the same direction as
the airflow at the outlet and conforms to the rotation
decal affixed to the unit.
Wheels as viewed from the drive side:
Wheel
Cone
Radial
Gap
Radial
Gap
Overlap
A
Straight
Edge Straight
Edge
Inlet
Cone
Inlet
Cone
Backward-Inclined
Radial Gap, Overlap and Wheel Alignment
Radial Gap and Overlap Dimensions
XUEFD-100-BI
A Overlap
Overlap
Tolerance
inches (mm)
110 5 23 ⁄
32
(145)
5 ⁄
32
(4)
1 ⁄
8
(3)
113
5 27 ⁄
32
(148)
7 ⁄
32
(6)
1 ⁄
8
(3)
115 6 31 ⁄
32
(177)
5 ⁄
32
(4)
1 ⁄
8
(3)
116 7 1 ⁄
2
(191)
1 ⁄
8
(3)
1 ⁄
8
(3)
118 9
(229)
3 ⁄
16
(5)
1 ⁄
8
(3)
XUEF-100-BI
A Overlap
Overlap
Tolerance
inches (mm)
104 4 3 ⁄
4
(121)
1 ⁄
8
(3)
1 ⁄
16
(2)
106 4 3 ⁄
4
(121)
1 ⁄
8
(3)
1 ⁄
16
(2)
108 4 3 ⁄
4
(121)
1 ⁄
8
(3)
1 ⁄
16
(2)
110
4 3 ⁄
4
(121)
1 ⁄
8
(3)
1 ⁄
16
(2)
113 5 3 ⁄
4
(146)
1 ⁄
4
(6)
1 ⁄
8
(3)
115 6 1 ⁄
2
(165)
1 ⁄
2
(13)
3 ⁄
16
(5)
116 7 1 ⁄
8
(181)
1 ⁄
2
(13)
3 ⁄
16
(5)
118 8 9 ⁄
16
(217)
5 ⁄
8
(16)
1 ⁄
4
(6)
120
7 9 ⁄
16
(192)
5 ⁄
8
(16)
1 ⁄
4
(6)
124 10 13 ⁄
16
(259)
3 ⁄
4
(19)
3 ⁄
8
(10)
Radial Gap and Overlap Dimensions
XUEF-200 XUEF-300 XUEF-400
A Overlap
Overlap
Tolerance
inches (mm)
206 306 4 15 ⁄
16
(125)
3 ⁄
8
(10)
1 ⁄
8
(3)
207 307 4 15 ⁄
16
(125)
3 ⁄
8
(10)
1 ⁄
8
(3)
208 308 4 15 ⁄
16
(125)
3 ⁄
8
(10)
1 ⁄
8
(3)
210 310 4 15 ⁄
16
(125)
3 ⁄
8
(10)
1 ⁄
8
(3)
407 1 7 ⁄
16
(37)
2 15 ⁄
32
(63)
1 ⁄
8
(3)
408 2 11 ⁄
16
(68)
1 7 ⁄
32
(31)
1 ⁄
8
(3)
409 3 11 ⁄
16
(94)
7 ⁄
32
(6)
1 ⁄
8
(3)
410 3 11 ⁄
16
(94)
7 ⁄
32
(6)
1 ⁄
8
(3)
212 312 412 4 1 ⁄
4
(108)
11 ⁄
32
(9)
1 ⁄
8
(3)
213 313 413 4 11 ⁄
16
(119)
3 ⁄
8
(10)
1 ⁄
8
(3)
215 315 415 5 3 ⁄
16
(132)
7 ⁄
16
(11)
1 ⁄
8
(3)
216 316 416 5 3 ⁄
4
(146)
7 ⁄
16
(11)
1 ⁄
8
(3)
218 318 418 6 3 ⁄
8
(162)
15 ⁄
32
(12)
1 ⁄
8
(3)
220 320 420 7
(178)
1 ⁄
2
(13)
3 ⁄
16
(5)
222 322 422 7 13 ⁄
16
(198)
17 ⁄
32
(13)
3 ⁄
16
(5)
324 424 8 5 ⁄
8
(219)
9 ⁄
16
(14)
1 ⁄
4
(6)
327 427 9 7 ⁄
16
(240)
11 ⁄
16
(17)
1 ⁄
4
(6)
330 430 10 9 ⁄
16
(268)
11 ⁄
16
(17)
3 ⁄
8
(10)
333 433 11
7
⁄
16
(291)
15
⁄
16
(24)
3
⁄
8
(10)
336 436 12 3 ⁄
4
(324)
15 ⁄
16
(24)
3 ⁄
8
(10)
340 440 14 3 ⁄
16
(360)
29 ⁄
32
(23)
3 ⁄
8
(10)
344 444 15 9 ⁄
16
(395)
1 1 ⁄
8
(29)
3 ⁄
8
(10)
349 449 17 1 ⁄
8
(435)
1 1 ⁄
4
(32)
1 ⁄
2
(13)
Gap Size
Wheel
Forward-Curved
Inlet
Cone
Gap Dimensions
XUEFD-100-FC Gap XUEF-100-FC Gap
106 3 ⁄
8
(10)
109 1 ⁄
4
(6)
107 3 ⁄
8
(10)
110 1 ⁄
4
(6)
109 1 ⁄
2
(13)
112 1 ⁄
4
(6)
110 1 ⁄
2
(13)
115 1 ⁄
4
(6)
118 1 ⁄
4
(6)
120 1 ⁄
4
(6)
122 1 ⁄
4
(6)
124 1 ⁄
4
(6)
Airflow
R
o
ta
ti
o
n
Backward Inclined
R
o
ta
ti
o
n
Airflow
Airfoil
Airflow
R
o
ta
tio
n
Forward Curved