Related Manuals for Marley Geareducer 4000
Summary of Contents for Marley Geareducer 4000
- Page 1 u s e r m a n u a l Geareducer model 3600 and 4000 ® I N STA L L AT I O N - O P E R AT I O N - M A I N T E N A N C E Z0493915_C ISSUED 06/2022 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT...
- Page 2 Tapered Fan Shaft The following instructions detail the process for installing a fan on a Marley Geareducer with a straight fan shaft using a split Warning – Correct key installation is imperative for proper and taper bushing or a tapered fan shaft utilizing a bolted fan hub retention plate.
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Page 3: Operation And Service
As shipped, a Marley Geareducer is protected internally against corrosion with machine enamel on un-machined parts and with Marley Geareducers utilize iron and steel materials, which if not rust-proofing oil and grease on machined surfaces. These coatings maintained correctly, may degrade. While some external corro-... - Page 4 Figure 3 Priming Interstage Shaft See Marley User Manual Z0238848 “Cooling Tower Downtime Instructions” and Marley Drawing Z0544916 “Marley Geareducer Check all gasketed joints for oil seepage. Tighten cap screws and Reservoir System” for further information.
- Page 5 operation and service OIL GAUGE VENT LINE OIL LEVEL CHECK VENT OIL FILL PLUG INSPECTION OIL LEVEL COVER GAUGE DRAIN PLUG OIL GAUGE AND DRAIN LINE THREE-WAY VALVE Figure 4 Service Fittings Fill the Geareducer and oil line system with oil, using one of the following procedures: Recommended procedure: 1.
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Page 6: Scheduled Maintenance
Intermittent operation and extended periods of downtime can cause condensation of water in the oil. If using synthetic Marley Gearlube, the oil condition must be inspected every six months—see Changing Geareducer Oil for maximizing service life. - Page 7 These products have been recommended by their respective service center. Contact your Marley sales representative to discuss manufacturers as acceptable for use in a Marley spiral bevel and/ a course of action. The Marley Order Number on your cooling or helical Geareducer for cooling tower applications.
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Page 8: Parts List
parts list PLUG INTERSTAGE WATER SLINGER BEARING CAP LIP SEAL PINION ASSEMBLY LABYRINTH RING PRE-2013 STANDARD 705* 706* 504-506 701* 507-509 AIR VENT 20-DOWEL PIN GEAREDUCER 301-FAN SHAFT CASE COVER 5-INTERSTAGE BEARING RETAINER 101- PINION SHAFT AND GEAR 201-INTERSTAGE SHAFT 101- PINION SHAFT AND GEAR INSPECTION COVER... - Page 9 parts list Complete Geareducer Assembly 400 Pinion Shaft Bearing Set 100 Spiral Bevel Gear Set 401 Tail, tapered roller bearing 101 Set of matched spiral bevel gears including 402 Head, tapered roller bearing integral pinion shaft with key Gear ratios as follows: 410 Interstage Bearing Set 2.304 to 1 2.435 to 1...
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Page 10: Field Repair
field repair General Geareducers can be repaired in the field—however, major repairs require the use of a fully equipped machine shop. When field repair or replacement of parts is necessary, the following procedure is recommended for the disassembly and assembly of the unit. If any O-ring, oil seal or gasket is to be reused, care should be taken not to damage it during disassembly. - Page 11 field repair Figure 8 Disassembly of Pinion Cage Disassembly of Pinion Cage Part numbers and references—refer to Figures 6 and 8. Remove pinion cage cap and oil seal (701). Remove locknuts (103) and washer (104) from pinion shaft. Press pinion shaft with head bearing cone (402) out of pinion cage.
- Page 12 field repair Disassembly of Fan Shaft Part numbers and references—refer to Figures 6 and 10. Press helical ring gear (201), lower fan shaft spacer (40) and lower cone (421) from shaft. Remove key spacer ring. Remove upper bearing cone (422). Remove upper fan shaft bearing cup (422) from case cover (not illustrated).
- Page 13 field repair Figure 12 Pinion Cage Assembly Interstage Assembly Part numbers and references—refer to Figures 6 and 13. Install key (106) and spiral bevel ring gear on interstage shaft. Press top cone of bottom interstage bearing (411) onto interstage shaft. Install double cup and spacer of bottom interstage bearing (411).
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Page 14: Final Assembly
field repair Lower fan shaft and interstage shaft subassemblies into case simultaneously. Engage marked spiral bevel ring gear teeth with marked spiral bevel pinion tooth. The gear and pinion are match-marked when lapped and must be assembled the same way. The ring gear has the end of two teeth marked “X” and the pinion has one tooth so marked—... - Page 15 field repair e. The difference in dial indicator readings (steps c and d) is the initial fan shaft bearing end play. In order to achieve the prescribed preload of .001" to .003" (.025–.076mm) remove an amount of shims from between the case and labyrinth ring equal to the measured end play plus .001"...
- Page 16 Should a condition be encountered where correct contact cannot be obtained as described in this manual, the Geareducer should be returned to Marley in exchange for a factory reconditioned unit. CORRECT PINION AND RING GEAR TOOTH CONTACT PATTERNS INCORRECT RING GEAR TOOTH CONTACT PATTERNS...
- Page 18 Geareducer 3600 - 4000 U S E R M A N UA L SPX COOLING TECH, LLC 7401 WEST 129 STREET Z0493915_C ISSUED 6/2022 OVERLAND PARK, KS 66213 USA COPYRIGHT © 2022 SPX TECHNOLOGIES 913 664 7400 | spxcooling@spx.com In the interest of technological progress, all products are subject to design and/or material change without notice.
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