Great Plains NTA1300 Predelivery Manual - Manual (Page 14)

12 NTA 1000 and NTA 1300 148-528Q 7/29/2004
Great Plains Mfg., Inc.
Figure 17
Fan Assembly
Figure 18
Flush Key
Figure 19
Fan to Fan Mount
Fan Assembly
Refer to Figure 17
1. Assemble the hydraulic motor mount plate (1) to the
fan housing LH side (2) using slotted hex head screws
(3). Tighten carefully by hand so as not to strip threads
on screws or fan housing.
2. Assemble the hydraulic motor (4) to the mount plate
(1) with 3/8-16 x 1 1/4” bolts (5) and 3/8 flat washers,
lock washers and hex nuts (6). When looking at the
motor the letters should be right-side up, reading
B - A.
3. Slide fan impeller (7) onto shaft of hydraulic motor.
Place 1/8 Key (8) onto shaft and slide bushing (9) on
lining up the key and grooves. Slightly tap bushing
onto shaft until close enough to insert screws. Place
magnetic washer (10) which is supplied by Roger
against bushing lining up holes. Attach the magnet to
the bushing, using the screws supplied, to the fan
bushing. Slowly tighten down to a torque of 5 inch
pounds per screw, alternating on the screws with each
turn. Slightly tap 1/8 key (8) into grooves until flush.
The assembled bushing must be flush with the end of
the motor shaft. See figure 18.
4. Assemble fan housing RH side (11) to fan housing LH
side with HFSS 1/4-20 x 1(12) and flange hex nut (13).
5. Assemble screen fan cover (14) to house with fasten-
ers that are supplied, leaving the two lower ones out
for the Roger sensor and bracket (15).
6. Install the Roger sensor and bracket to the fan hous-
ing from the inside of the screen fan cover using the
two screws that were left out. The distance between
the sensor and the magnetic washer needs to be set
to distance specified in Roger manual.
NOTE: Caulking may be used around seams to ensure
minimal air leakage.
Fan Assembly to Fan Mount
Refer to Figure 19
1. Assembly fan mount (1) to “H” frame (2) using two 3/8
x 1 1/4 bolts, flat washer, lock washers and hex nuts.
2. Attach fan (3) to fan mount by replacing the bottom
five screws with 1/4 x 1 1/4 bolts. Do not over tighten.
3. Install two 3/8-16 x 3/4 bolts, lock washers and hex
nuts, in replace of the plastic plugs in the holes on
each side of the fan housing (4).
19430
19416
19438
Assembly