Eaton 33 Manual
Electronic proportional (ep) control for heavy duty series 2 piston pumps
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- Parts & repair information (57 pages) ,
- Repair information (32 pages) ,
- Manual (19 pages)
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Summary of Contents for Eaton 33
- Page 1 Electronic Proportional (EP) Control for Heavy Duty Series 2 Piston Pumps Model 33 Model 54 Model 39 Model 64 Parts & Service 08-10-0002 EN-0901 Model 46...
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Page 2: Table Of Contents
Troubleshooting Reference Settings ........... . . 18 EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... -
Page 3: Introduction
Performance values are typical values. Customers are responsible for selecting products for their applications using normal engineering methods. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... -
Page 4: Parts And Kits
Alternate reference source: Pioneer Standard Electronics 1-800-257-6613 9900045-000 Tool (1) 1209 4429 www.pios.com 4-Pin Housing Connector (Female) (1) 1218 6568 4-Pin Housing Connector (Male) (1) 1218 6271 EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... -
Page 5: Tools Required
• 3/4" Open-End Wrench • Flat Blade Screwdriver • 12 VDC Power Supply or Battery • Voltage Ohm Meter (VOM) • Charge Pressure Gauge EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... -
Page 6: Disassembly
EP Control electronic module and the solenoid coils. Caution must be used when disconnecting these connectors as they are latched with keepers. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... - Page 7 Repeat on the second tube. If just replacing the coil and tube subassemblies, skip to Reassembly, Step 16. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
- Page 8 Take care not to damage the feed- back link or swashplate link. Step 9 Caution must be used so that the swashplate link remains seated on the swashplate pin. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
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Page 9: Reassembly
Reassembly Step 12 Clean the EP Control mounting surface. Install a new control valve gasket by aligning with screw and porting holes. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... - Page 10 Step 15 Using a 1/4" hex key (or 1/2" socket/end wrench), tighten the five 5/16"-18 hex head cap screws. Torque to 22±2 lbf·ft. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
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Page 11: Neutral Adjustment
A. Disengage the input drive to vehicle or elevate wheels. B. Install charge pressure gauge. A 0-1000 psi or 0-1500 psi pressure gauge is recommended. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... - Page 12 Step 20 Using a Phillips screwdriver, replace the lockwasher and tighten the set screw which hold the Metri-Pack ® connector onto the valve assembly. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
- Page 13 Recheck your work and then recon- nect the power to the vehicle or system. Step 25 The pump is now ready to return to operation. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
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Page 14: Interconnect Schematic
-20 mA signal to operate the *Note: Actual flow direction depends Full Stroke Port A Flow* on pump type and rotation pump in the opposite direction. Typical Control Characteristics EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... -
Page 15: Troubleshooting
The DC voltage reading should be approxi- mately ±5 volts for input command currents of ±20 mA respectively. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... - Page 16 The DC voltage reading should be approxi- mately ±5 volts for input command currents of ±20 mA respectively. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
- Page 17 Refer to instructions on page 5. Disconnect the two solenoid four-pin connectors. Follow instructions for setting neutral on page 11 Step 19. EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001...
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Page 18: Troubleshooting Reference Settings
Max command in Minimum 1.5 A one direction Maximum 2.0 A Neutral Max command in Minimum 1.5 A the same direction Maximum 2.0 A EATON EP Control for Heavy Duty Series 2 Piston Pumps Parts & Service 08-10-0002-EN-0901 September 2001... - Page 19 Fax: (44) 23 92 487 110 DET NORSKE VERITAS INDUSTRY BV, THE NETHERLANDS www.eaton.com Quality System Certified Products in this publication are manufactured in an ISO-9001-certified site. © 2001 Eaton Corporation All Rights Reserved Printed in USA Form No. 08-10-0002 EN-0901 September 2001...
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