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Table of Contents
- 1 Table of Contents
- 2 Introduction
- 3 Identification
- 4 Required Tools
- 5 Disassembly and Inspection
- 6 Reassembly
- 7 Main Parts Description
- 8 Item Numbers 1, 2, & 3 Descriptions
- 9 74624 Exploded View Drawing
- 10 Specific Parts List for 74624 Model
- 11 74644 Exploded View Drawing
- 12 Specific Parts List for 74644 Model
- 13 Trouble Shooting
- Download this manual
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Table of Contents
Related Manuals for Eaton 74624 Series
Summary of Contents for Eaton 74624 Series
- Page 1 Eaton ® May 1999 Medium Duty Piston Pump Repair Information Model 74624 and 74644, 82,6 cm /r [5.04 in /r] Displacement design code...
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Page 2: Table Of Contents
Trouble Shooting ....................Introduction This manual provides service information for the Eaton Models 74624 and 74644 fixed displacement motor. Step by step instructions for the complete disassembly, inspection, and reassembly of the motor are given. The following recommendations should be followed to insure successful repairs. -
Page 3: Identification
Model 74624 and 74644 Identification and Tools Required Identification Numbers Stamped on each unit. A - Product Number Description 74624 = Fixed Motor 82,6 cm /r [5.04 in 74644 = Fixed Motor thru Shaft for Brake Mount 82,6 cm /r [5.04 in B - Rotation, D = Dual C - Sequential Letters... -
Page 4: Disassembly And Inspection
The following repair procedures are Note: When rotating the piston block, make sure to retain the 9 used to disassemble the Eaton loose pistons in the block assembly. model 74624 high torque axial piston motors. -
Page 5: Reassembly
Place the spring over the drive shaft and pivot onto the spring. Before reassembly the Eaton Model 74624 high torque axial 10 Lubricate and place spider pilot onto pivot. piston motor inspect all parts and replace if needed. New seals should be lubricated with petroleum jelly to assure proper installation. -
Page 6: Main Parts Description
Model 74624 and 74644 Main Parts Description Item Qty. Description Drive Shaft (See descriptions page 7) Backplate Assembly (See descriptions page 7) Housing Assembly (See descriptions page 7) Rotating Kit Assembly - Refer to specific parts list +~ 5 Retaining Ring +~ 6 O-ring, 2,37 mm Dia. -
Page 7: Item Numbers 1, 2, & 3 Descriptions
Model 74624 and 74644 Drive Shaft S/A - Item #1 Item # Description 15 Tooth 16/32 Spline with Snap Ring [10.69] (Short Key Included) Groove with Snap Ring, .375-16 UNC-2B Front - Taper .125:1 Dia 22.22 [.875], Thread, 18.3 [.72] Min Full Thread, Shaft Ext Woodruff Keyway Dia 15.75 [.620] X 39.6 [1.56] 3.96 [.156], .500-20 UNF-2A Thread,... -
Page 8: 74624 Exploded View Drawing
Model 74624 Parts Drawing... -
Page 9: Specific Parts List For 74624 Model
Model 74624 Specific Parts List # s ' # s ' # s ' # s ' r i a... -
Page 10: 74644 Exploded View Drawing
Model 74644 Parts Drawing - Through Shaft 35-1... -
Page 11: Specific Parts List For 74644 Model
Model 74644 Specific Parts List # s ' # s ' # s ' # s ' r i a... -
Page 12: Trouble Shooting
Trouble Shooting In trouble shooting a pump and motor system it is necessary to isolate the pump from the motor to determine which unit is actually malfunctioning. A worn pump or worn motor will give the same system indication. Therefore, it is advisable to first run a pressure and flow check on the pump to make sure it is performing within its operating specifications. - Page 13 Shanghai 200021 Tel: +41 (0) 21 811 4600 China Tel: 952-937-9800 Tel: 86-21-6387-9988 Fax: 952-294-7722 Fax: +41 (0) 21 811 4601 Fax: 86-21-6335-3912 www.eaton.com/hydraulics © 2008 Eaton Corporation All Rights Reserved Printed in USA Document No. E-MOPI-TS008-E Supersedes 07-134 November 2008...