background image

 9

5.  Drive dowel pins down into case.
6.  Remove bolts and case cover and lift fan shaft assembly out 

of the case.

7.  Turn case over and remove bottom cap and shim pack (

420

).

Note

—The thickness of this shim pack is important in setting the 

fan shaft bearing endplay and backlash. This pack should be saved 
or carefully measured with a micrometer.
8.  Remove bearing cups (

411

 and 

412

) from the Geareducer 

case and cover. 

PINION CAGE DISASSEMBLY

1.  Remove pinion cage cap* from pinion cage. 
2.  Remove O-ring* (

503

).

3.  Remove locknut, lockwasher and tongue washer (103, 

105

 and 

104

) then press pinion shaft (

101

) out of pinion cage. This will 

free tail bearing cone (

312

).

4.  Press oil slinger (

301

) and head bearing cone (

311

) from the 

pinion shaft.

5.  Press bearing cups (

311

 and 

312

) out of pinion cage.

FAN SHAFT DISASSEMBLY

1.  Remove ring gear (

101

) from the ring gear hub  

(

008

). 

2.  Press ring gear hub, ring spacer (

204

—Model 2700 only) and 

lower bearing cone (

411

) off of the fan shaft (

201

). 

3.  Remove lower fan shaft key (

202

).

4.  Press the top bearing cone (

412

) off of the shaft. 

 

ASSEMBLY

Before assembling a new pinion gear in the pinion cage, check match 
numbers on pinion gear and spiral bevel ring gear to be certain that 
they are a matched set. Gears are lapped in matched sets at the 
factory and should not be separated. Numbers are etched on both 
the pinion and ring gear as illustrated in 

Figure 4

All parts that are to be reused should be thoroughly cleaned before 
being reinstalled. Replace bearings if necessary.

PINION CAGE SUBASSEMBLY

1.  Place oil slinger (

301

) on pinion shaft. 

2.  Press head bearing cone (

311

) on pinion shaft making sure oil 

slinger and bearing are against gear. 

3.  Press bearing cups (

311

 and 

312

) into pinion cage. 

4.  Lower pinion cage on pinion shaft, until head bearing cone and 

cup mate. 

5.  Press tail bearing cone (

312

) on pinion shaft until it mates with 

its bearing cup. 

6.  Install locknut, lockwasher and tongue washer (

103

105

 and 

104

). Tighten nuts on bearing cone until 8 to 12 in·lbƒ (904-

1356 mN·m) of bearing preload is obtained. Bearing preload 
is the resistance in the bearings to shaft rotation measured in 
in·lbƒ required to rotate the shaft at uniform velocity. Preload is 
necessary to insure the stability of the gear engagement. Bend 
tab(s) on lockwasher to secure locknut in place. 

7.  Install O-ring (

503

) in groove on pinion cage.

8.  Press oil seal onto pinion shaft.
9.  Tighten pinion cage cap screws to 45 ft·lbƒ (61 N·m).
10.  Record the pinion setting distance that is etched on the pinion 

gear. See 

Figure 4

.

INSTALLATION OF FAN SHAFT

1.  Press ring gear hub (

008

), ring spacer (

204

—Model 2700 only) 

and the upper and lower bearing cones (

411

 and 

412

) on the 

fan shaft (

201

). Install ring gear (

101

) on ring gear hub and 

tighten cap screws to 75 ft·lbƒ (102 N·m) for Model 2700 or 
150 ft·lbƒ (203 N·m) for Model 3000. 

Install the bottom cap using old shim pack or make up equivalent 
thickness shim pack (

420

).

3.  Press lower fan shaft bearing cup (

411

) in bore.

4.  Install fan shaft assembly in case.
5.  Press upper fan shaft bearing cup (412) in cover. Apply a bead 

of sealant to the cover flange inboard of the bolt holes. Install 
cover on case. Install dowel pins in cover and drive flush with 
top of cover. 

6.  Install cap screws and tighten to 45 ft·lbƒ (61 N·m). 
7. 

Install bearing retainer using old shim pack (

420

) or equivalent 

thickness and tighten cap screws to 45 ft·lbƒ (61 N·m). 

field repair

Содержание 2700-3000 Series

Страница 1: ...2700 3000 Series Geareducer INSTALLATION OPERATION MAINTENANCE user manual uk_Z0529732_A ISSUED 06 2017 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT ...

Страница 2: ...ng alignment x Inspect and tighten driveshaft or coupling fasteners x Check driveshaft or coupling bushing flex elements for unusual wear x Lube Lines if equipped Check for oil leaks in hoses and fittings x R x R Refer to instructions within this manual Note It is recommended at least weekly that the general operation and condition be observed Pay particular attention to any changes in sound or vi...

Страница 3: ...s Geareducers supplied with new towers include oil for the initial fill ing Oil is not furnished with Geareducers supplied as spares or on replacement orders Before operating the mechanical equipment check to be sure the oil level is at the full mark at the Geareducer and that the external gauge placard if equipped full mark corre sponds with the Full level in the Geareducer Check any oil lines to...

Страница 4: ...k mechanical equipment anchor bolts drive shaft coupling bolts and coupling set screws Tighten as required Check Geareducer exterior yearly and touch up with epoxy paint if required Coat all exposed threads at pipe joints to prevent corrosion Every 5 Years If using Marley synthetic Gearlube change oil To maintain five year change intervals use only Marley Gearlube It is recommended to monitor the ...

Страница 5: ...to a pump to the three way valve operation and service Pump oil through the hose Check oil level occasionally by turning the valve control stem counterclockwise and allowing the oil level in the sight glass to stabilize Continue filling until full level mark is reached 3 With the oil level at the full mark turn the valve control stem counterclockwise to close the drain and open the valve to the si...

Страница 6: ...list 210 502 BEARING RETAINER 203 202 101 301 420 104 105 103 311 503 312 501 PINION CAGE PINION CAGE CAP 320 DOWEL PIN 420 412 201 102 101 008 VENT WATER SLINGER GEAREDUCER CASE 204 411 BOTTOM CAP CASE COVER DOWEL PIN ...

Страница 7: ...4 Tongue Washer 105 Lockwasher 200 Fan Shaft Set 201 Fan Shaft 202 Ring gear hub key 203 Fan key 204 Ring spacer Model 2700 Geareducer only 210 Fan attaching hardware Cap screws and washers 301 Oil Slinger 310 Set of Two Pinion Shaft Bearings 311 Head tapered roller bearing 312 Tail tapered roller bearing 320 Pinion Cage Shims 410 Fan Shaft Bearing Set 411 Lower tapered roller bearing 412 Upper ta...

Страница 8: ... ring of bolts in pinion cage and remove pinion subassembly Note The thickness of the shim pack 320 is important in resetting thegears Theshimpackshouldeitherbesavedorcarefullymeasured with a micrometer If the gears are to be replaced record the pinion setting distance that is etched on the pinion gear See Figure 4 3 Remove water slinger 4 Remove bearing retainer and shim pack 420 from top of case...

Страница 9: ...pinion shaft making sure oil slinger and bearing are against gear 3 Press bearing cups 311 and 312 into pinion cage 4 Lower pinion cage on pinion shaft until head bearing cone and cup mate 5 Press tail bearing cone 312 on pinion shaft until it mates with its bearing cup 6 Install locknut lockwasher and tongue washer 103 105 and 104 Tighten nuts on bearing cone until 8 to 12 in lbƒ 904 1356 mN m of...

Страница 10: ...nthebacklashetchedonthegearset findtheequivalent backlash setting in Table 2 Column 2 2 With the X marked tooth on the pinion gear engaged be tween the two X marked teeth on the ring gear check the backlash with a dial indicator as shown in Figure 5 Lock the pinion shaft against rotation The amount of movement of the fan shaft measured at a distance equal to the outside radius of the ring gear is ...

Страница 11: ...11 field repair Table 2 Backlash Etched on Gears Set the Gears to Backlash 008 010 003 008 009 0115 003 008 010 013 003 008 011 014 004 010 012 015 004 010 013 017 004 010 014 0185 004 010 ...

Страница 12: ...ION In the interest of technological progress all products are subject to design and or material change without notice SPX COOLING TECHNOLOGIES UK LTD 3 KNIGHTSBRIDGE PARK WORCESTER WR4 9FA UK 44 1905 750 270 ct fap emea spx com spxcooling com Geareducer US E R MAN UAL ...

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