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Related Manuals for Hydro-Gear RT-310
Summary of Contents for Hydro-Gear RT-310
- Page 1 RT-310™ Service and Repair Manual BLN-0078 February 2023...
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Page 3: Table Of Contents
How to Use This Manual....10 General Instructions......10 Description and Operation......2-5 Tools..........11 Introduction.........2 Torques..........11 General Description ......2 Removal..........12 External Features RT-310 ....4 Technical Specifi cations......5 Product Identifi cation......5 RT-310 Tear Down and Assembly..13-25 Fan and Pulley Assembly....13 Safety.............6 Control Arm Assembly.......14 Personal Safety........6... -
Page 4: Foreword
® angle hydrostatic transmission. the products and manufacturers in our industry. Also included is a glossary of terms that are For more information about Hydro-Gear or our ® frequently used throughout the industry and in products, please contact your Central Service Hydro-Gear service publications. -
Page 5: Description And Operation
The purpose of this manual is to provide infor- of 3cc per revolution, and motor with a fi xed mation useful in servicing the Hydro-Gear ® displacement of 10cc per revolution. The vari- right angle hydrostatic transmission. This... - Page 6 PUMP INPUT SHAFT SYSTEM CHECK VALVES MOTOR OUTPUT SHAFT MOTOR PUMP BYPASS EXPANSION TANK Figure 1, Hydraulic Schematic RT-310...
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Page 7: External Features Rt-310
EXTERNAL FEATURES RT-310 Motor Shaft Expansion Plate Input Shaft Control Arm Bypass Arm Motor Shaft Case Drain / Fill Port Figure 2, External Features RT-310... -
Page 8: Technical Specifications
Output Shaft End Type Keyed Weight of Unit 9 [4] ..........lb [kg] PRODUCT IDENTIFICATION The model and confi guration of the RT-310 can be determined from the label found on the transaxle. BOM Model Number 1610-1001 2D Q Code 2 275 X1 4761... -
Page 9: Safety
“Discard used cleaning material in the ap- is any hazard involving the equipment or the propriate containers according to local, state, performance of your job. and federal regulations.” Never allow untrained or unauthorized person- nel to service or repair the equipment. RT-310... -
Page 10: Troubleshooting
Purge hydraulic system Brake Partially Engaged Disengage Brake, Replace broken, missing or frozen return spring Tr a n sa x le Leaks Oil Damaged seals, housing, or gaskets Replace damaged components Air trapped in hydraulic system Purge hydraulic system RT-310... -
Page 11: Service And Maintenance
F. Biodegradable oils are not approved for this unit as they degrade too quickly when in EXTERNAL MAINTENANCE service. Regular external maintenance of the RT-310 “All fl uids should be handled and disposed should include the following: of according to local, state, and federal 1. -
Page 12: Purging Procedures
3. It may be necessary to repeat Steps 1 and 2 until all the air is completely purged from 3. High operation temperature and excessive the system. When the transmission moves expansion of oil. forward and reverse at normal speed purg- ing is complete. RT-310... -
Page 13: Tear Down And Reassembly
Hydro-Gear replacement parts of maintenance. Cleaning of all parts by us- found at www.hydro-gear.com or at your Hydro- ing a solvent wash and air drying is usually Gear Central Service Distributor. -
Page 14: Tools
320-400 in-lbs (31.64-45.19 Nm) Check Plug in Center Section Check plug 320-400 in-lbs (31.64-45.19 Nm) Check Plug in Center Section Bolt, self tapping 10-32 25-50 in-lbs (2.82-5.64 Nm) Expansion Plate Screw, hex fl ange 1/4-20 85-115 in-lbs (9.60-12.99 Nm) Housing Screw RT-310... -
Page 15: Removal
REMOVAL NOTE: It is necessary to remove the RT-310 Do not disassemble the unit any farther than from the vehicle before performing the necessary to accomplish the required repairs. repair procedures presented in this Reassembly is accomplished by performing section. -
Page 16: Tear Down And Assembly
11 for the required torque values. nspection 4. The pulley hub (62) will need to be replaced 1. Check all components for excessive wear if it is removed from the input shaft. or damage. Replace if necessary. Figure 5, Fan & Pulley Assembly RT-310... -
Page 17: Control Arm Assembly
4. Remove the control arm (33). 5. Remove the seal (32). NOTE: O-ring (31) is located inside the control arm (33) Inspection 1. Inspect all parts for wear or damage. Re- place as necessary. Figure 6, Control Arm Assembly RT-310... -
Page 18: Side Housing
Press the tape fi rmly to achieve a good seal around the holes. 7. Install the expansion plate (3) and two screw (6). NOTE: When tightening the screws, refer to the table on page 11 for the required torque values. Figure 7, Side Housing RT-310... -
Page 19: Motor Shaft
2. Remove the seal guard (49). 3. Remove the retaining ring (48). 4. Remove the seal (47) and washer (46). 5. Remove the motor shaft assembly (43). Inspection 1. Inspect all items for wear and or damage. Figure 8, Motor Shaft RT-310... -
Page 20: Motor Block Assembly And Thrust Bearing
Inspect the pistons (27), piston springs (25) and thrust washers (26) for excessive wear or damage. NOTE: Thrust washers (26) may be held in place in the piston by residual oil. Figure 9, Motor Block and Thrust Bearing RT-310... -
Page 21: Center Section
2. Inspect the threaded check plug (21 & 22) ports of the center section for debris or dam- age. Running Surface Dowel pin - 3 inches in length and 1/4 inch diameter Figure 10, Center Section Figure 11, Dowel Pin Dimensions RT-310... -
Page 22: Pump Block
Check for piston/block wear in the cylinder bore. Inspect the pistons, piston springs and thrust washers for exces- sive wear or damage. NOTE: Thrust washers may be held in place in the piston by residual oil. Running Surface Figure 12, pump block RT-310... -
Page 23: Swash Plate And Thrust Bearing
NOTE: When reassembling the thrust bearing bearing (15). (15) the thick race needs to be towards the pistons. 3. Remove the cradle bearings (12). Inspection 1. Inspect all components for wear or dam- age. Figure 13, Brake Shaft Assembly RT-310... -
Page 24: Input Shaft
1. Remove all items previously discussed in 1. Reassemble all parts in the reverse order the recommended order. of disassembly. 2. Remove the input shaft (14). Inspection 1. Inspect all components for wear or dam- age. Figure 14, Brake Shaft Assembly RT-310... -
Page 25: Bypass Assembly
(56) and bypass arm (55). 3. Remove retaining ring (54). 4. Remove seal (53). 5. Remove wave washer (52). 6. Remove bypass actuator (51). Inspection 1. Inspect all components for wear or dam- age. Figure 15, Bypass RT-310... -
Page 26: Assembly After Complete Tear Down
Page 24........Exploded View it is reassembled. See page 17. Page 25..........Parts List 6. Install motor shaft (43), washer (46), new seal (47), retaining ring (48) and new seal guard (49). See page 16. RT-310... -
Page 27: Exploded View
RT-310 EXPLODED VIEW RT-310... -
Page 28: Parts List
RT-310 PARTS LIST HOUSING, MAIN, SHOT COVER PLATE, EXPANSION BLADDER SCREW, HEX FLANGE BOLT, SELF TAPPING PLUG, 9/16-18 STRAIGHT THREAD SOCKET HEAD BEARING, CRADLE SWASH PLATE KIT, INPUT SHAFT BEARING KIT, 3cc BLOCK SCREW, HFHCS KIT, 10cc BLOCK BEARING, THRUST... -
Page 29: Glossary Of Terms
Hydrostatic Transaxle: A multi component assembly including a gear case and a hydrostati- transmission. Hydrostatic Transmission: The combination of a hydraulic pump and motor in one housing to form a device for the control and transfer of power. Inlet Line: A supply line to the pump. RT-310... - Page 30 Valve: A device which controls fl uid fl ow direction, pressure, or fl ow rate. Variable Displacement Pump: A pump in which the displacement per revolution can be var- ied. Volumetric Displacement: The volume for one revolution. RT-310...
- Page 31 NOTES RT-310...
- Page 32 NOTES RT-310...
- Page 33 © 2023 HYDRO-GEAR Printed in U.S.A. Rev. P1...
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