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3

Note

Fan Hub Installation 

The following instructions detail the process for installing a Marley 
HP7000 fan on a Marley Geareducer

®

 with a tapered fan (output) 

shaft utilizing a bolted fan hub retention plate or a straight fan shaft 
using  a  split  taper  bushing.  Installation  on  other  gear  reduction 
units may be different. Contact your Marley sales representative 
for supplemental instructions if required.

If the fan installation is for a Marley 36, 38, 3600, or 4000 model 
Geareducer, or uses a U1 split taper bushing on a straight (out-
put) shaft, refer to the applicable instructions below.

1–Remove  the  retention  plate  and  hardware  from  the  top  of  the 
Geareducer  shaft.  Thoroughly  clean  the  fan  shaft,  fan  shaft  key, 
and the fan hub center bore to remove any debris and/or protective 
coatings. After cleaning, apply a coat of anti-seize compound to 
the top 7

 (180mm) of the fan shaft.

2–Prior to hub installation, fully seat the key in the fan shaft keyway. 
The key is a tight fit across the width and must never be altered.
3–Raise the fan hub above the fan shaft for installation. Slowly lower 
the hub onto the shaft with the keyways properly aligned. Make 
certain the key does not slide down during installation. Stake the 
key in the keyway with a center punch if necessary.
The fan shaft key should be approximately centered in the engaged 
portion of the hub when engaged on the shaft. Verify the center hub 
is fully seated by visual inspection.
4–Install the retention plate and hardware. Torque bolts to 70 ft·lb

ƒ

 

(95 N·m).

36  and  38  Series  Geareducers  use  a  tapered  fan  shaft  key.  
Correct key installation is imperative for proper and safe op-
eration. The following instructions detail installation for these 
applications.

1–Remove  the  retention  plate  and  hardware  from  the  top  of  the 
Geareducer.  Thoroughly clean the fan shaft, fan shaft key, and the 
hub center bore to remove any debris and/or protective coatings. 
After cleaning, apply a coat of anti-seize compound to the top 7

 

(180mm) of the fan shaft.
2–Install the 36 and 38 Series Geareducer fan shaft key in the fan 
shaft keyway as shown in 

Figure 2

. The key is a tight fit across the 

width and must never be altered.

36 and 38 Geareducer

Содержание HP7000

Страница 1: ... Marley HP7000 Fan User Manual 97 1342B ...

Страница 2: ...200 132 100 Hub 101 Hub Center 102 Hub Plate 110 Kit Blade Clamp 111 Blade Clamp 120 Kit Center Hub Hardware 121 Cap Screw 5 8 122 Flat Washer 5 8 123 Pin 1 2 130 Kit Blade Clamp Hardware 131 Machine Bolt 3 4 132 Flat Washer 3 4 133 Locking Hex Nut 3 4 or Hex Nut 3 4 and Lock Washer 3 4 134 Thread Lubricant 140 Kit Hub Cover Hardware 141 Machine Bolt 3 8 142 Flat Washer 3 8 143 Lock Washer 3 8 144...

Страница 3: ...and must never be altered 3 Raise the fan hub above the fan shaft for installation Slowly lower the hub onto the shaft with the keyways properly aligned Make certain the key does not slide down during installation Stake the key in the keyway with a center punch if necessary The fan shaft key should be approximately centered in the engaged portion of the hub when engaged on the shaft Verify the cen...

Страница 4: ...center punch if necessary After the hub assembly is installed the bottom end of the key must extend through the bottom of the center hub and the top end of the key must extend 5 8 16mm minimum above the top of the fan shaft Do not force the key down once these criteria are met 4 Figure 3 illustrates proper retention plate and hardware installa tion The retention plate is designed to allow clearanc...

Страница 5: ...l cap screws provided with the fan installation kit Thoroughly clean the bushing center bore and outside taper barrel surface to remove any protec tive coating After cleaning apply a thin coat of anti seize compound to the outer taper surface of the bushing 3 Aligning the outside taper barrel bushing key with the keyway of the hub bore loosely start the Type 1 or Type 2 bushing into the bore of th...

Страница 6: ...he bushing bore It may be necessary to slightly wedge open the split taper bushing for easier engagement of the fan shaft into the bush ing bore This can be accomplished by driving a wedge into the bushing flange split 6 Using a torque wrench tighten the stainless steel cap screws sequentially until each is tightened to 140 ft lbƒ 190 N m When the cap screw torque is at or near 140 ft lbƒ 190 N m ...

Страница 7: ...e spacers Position the blade clamps around the shank of a blade with the machined face end of the blade clamp against the blade safety shoulder See Figure 4 Large nylon cable ties can be used to hold blade clamps on the blade during installation providing easier assembly 3 Insert the blade with blade clamps around the shank and with the concave blade side TOP on the discharge side between the hub ...

Страница 8: ... safety shoulder is in contact with the blade clamp then set the pitch See Figure 5 Blades should be within 1 4 of the desired pitch angle After the de sired setting is obtained progressively tighten the 3 4 hex nuts to 120 ft lbƒ 163 N m torque Recheck the pitch angle If required loosen the hex nuts and reset the pitch as necessary until the proper pitch angle is obtained with the 3 4 hex nuts at...

Страница 9: ...l prolong useful life and assure contin ued trouble free operation After the first week and subsequently at six month intervals Torque all hardware to specifications referenced in this manual Visually inspect the fan for airborne debris damage contact with fan cylinder segments and corrosive attack Correct any situations determined detrimental to fan operation Remove any accumulated scale or dirt ...

Страница 10: ...b assembly identification number see Figure 1 is required to identify a replacement hub assembly or repair components Please provide the Marley sales office or sales representative the necessary information when ordering replacement fans or components Blades can be replaced without rebalancing the entire fan If rebalancing is desired contact the Marley sales office or repre sentative in your area ...

Страница 11: ... Measurements taken on motors operating with Variable Fre quency Drive controls may read up to 15 high from errors in measuringtheapproximatedsinewave Instrumentscapableof measuring a squared off wave form accurately should be used for measuring power in this situation Do not exceed 30 sec hour total motor starting time as motor may overheat Note VOLTSN Nameplate Volts AMPSN Nameplate Amperage HPN...

Страница 12: ...ND PARK KANSAS 66213 UNITED STATES 913 664 7400 spxcooling spx com spxcooling com In the interest of technological progress all products are subject to design and or material change without notice 2008 SPX Cooling Technologies Inc Printed in USA ...

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