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Summary of Contents for Summit TX25H
- Page 1 OPERATOR MANUAL TX25H www.summittractors.com...
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Page 2: Table Of Contents
CONTENTS PAGE DESCRIPTION REF. NO H 1.0 INTRODUCTION H 2.0 SPECIFICATIONS H 3.0 DETAILED VIEW OF HYDRAULIC SYSTEM DISMANTLING PROCEDURE FOR HYDRAULIC LIFT H 4.0 H 5.0 HYDRAULIC CIRCUIT DIAGRAMS H-11 H 6.0 OPERATION H-14 H 7.0 RE ASSEMBLY OF HYDRAULIC LIFT H-23 H 8.0 TROUBLESHOOTING OF HYDRAULIC SYSTEM... -
Page 3: Introduction
When pump is getting drive from transmission the system is called non-live. “LIVE” hydraulic system is there in model SUMMIT TX25. Hydraulic system is constant volume hydraulic system in model SUMMIT TX25. The discharge oil from hydraulic pump is always constant and continuous. The pressure of system is changed by changing the hindrance, which is created in the system with the help of different values. - Page 4 HYDRAULIC SYSTEM Dimensional Features Piston diameter : 2.56 in (65mm) Ÿ Working stroke : 3.62 in (92mm) Ÿ Piston displacement: 305 cm³ Ÿ Angular excursion of lifting arms in controlled position : 75° Ÿ Angular excursion of lifting arms in internal mechanical limit stops: 78° Ÿ...
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Page 5: Detailed View Of Hydraulic System
HYDRAULIC SYSTEM H 3.0 DETAILED VIEW OF HYDRAULIC SYSTEM Lift Body Assembly Kit Relief Valve Lock Washer D=8 Din 7980 Screw M8x35 8g Din 931 Encl. in Seal Kit Encl. in Seal Kit Screw M10x35 Uni5737 Kit Flange with O-ring Washer D=10/20x2,6 Zn Seal Kit: Tab. - Page 6 HYDRAULIC SYSTEM Kit Quadrant With Friction Kit Camshaft Kit Position Lever Encl. in Seal Kit S E R V I C E M A N U A L...
- Page 7 HYDRAULIC SYSTEM Seeger E34 Din 471 Encl. in Seal Kit Shaft Kit Crank Kit Cylinder Encl. in Seal Kit Encl. in Seal Kit Kit Piston Encl. in Seal Kit Encl. in Seal Kit S E R V I C E M A N U A L...
- Page 8 HYDRAULIC SYSTEM Kit Lever Kit Compensator Kit Pin Lever Kit Pin S E R V I C E M A N U A L...
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Page 9: Dismantling Procedure For Hydraulic Lift
HYDRAULIC SYSTEM H 4.0 DISMANTLING PROCEDURE FOR HYDRAULIC LIFT S t e p - 1 : R e m o v a l o f H y d r a u l i c L i f t f r o m Transmission Housing First of all, remove lift body assembly from Ÿ... - Page 10 HYDRAULIC SYSTEM Unscrew allen screw from lift body for removal of Ÿ hydraulic cylinder. Remove hydraulic cylinder from lift body. Ÿ Step - 4: Removal of Rock Shaft Unlock circlip from both ends of Rock Shaft as shown Ÿ in figure. S E R V I C E M A N U A L...
- Page 11 HYDRAULIC SYSTEM Remove lift arms by using hammer as shown in Ÿ figure. Remove screw plug from ram arm for removal of Ÿ Rock Shaft as shown in figure. Remove the Rock Shaft by using hammer as shown Ÿ in figure. S E R V I C E M A N U A L...
- Page 12 HYDRAULIC SYSTEM Step - 5: Removal of Lever Assembly Remove lock pin (1) as shown in figure. Ÿ Remove lock pin (2) as shown in figure. Ÿ Remove the push rod as shown in figure. Ÿ H-10 S E R V I C E M A N U A L...
- Page 13 HYDRAULIC SYSTEM H 5.0 HYDRAULIC CIRCUIT DIAGRAM OF MODEL SUMMIT TX25H WITH SINGLE ACTING DCV CIRCUIT WITH PRIORITY VALVE UPTO 10.56 GPM Steering Unit Steering Unit to Return Pipe 40 CC Steering Cylinder St. Unit to Tank Load Sensing Semi Flexible Pipe...
- Page 14 HYDRAULIC SYSTEM H 5.1 HYDRAULIC CIRCUIT DIAGRAM OF MODEL SUMMIT TX25H WITH DOUBLE ACTING DCV CIRCUIT WITH PRIORITY VALVE UPTO 10.56 GPM Steering Unit Steering Unit to Return Pipe 40 CC Steering Cylinder St. Unit to Tank Load Sensing Semi Flexible Pipe...
- Page 15 HYDRAULIC SYSTEM H 5.2 CIRCUIT DIAGRAM OF HYDRAULIC LIFTING DEVICE Cylinder Rockshaft Rockshaft Sollevatore Cover End H-13 S E R V I C E M A N U A L...
- Page 16 HYDRAULIC SYSTEM H 6.0 OPERATION OF POWER LIFT CONTROL VALVE ON- OFF The control valve is pre-set to obtain three distinct phases: Neutral Phase Delivery Phase Discharge Phase Neutral Phase In this phase the control valve keeps pressure on the oil contained in the cylinder thus allowing the oil coming from the pump to flow freely to the tank.
- Page 17 HYDRAULIC SYSTEM Delivery Phase During this phase the Control Valve supplies the oil under pressure to the cylinder “9” and it consequently lifts the arms. The Control spool “1” is in such a position to connect the chamber “5” of the differential valve “2” with oil coming from the pump through annular duct “8”...
- Page 18 HYDRAULIC SYSTEM Discharge Phase During this phase the control valve supplies at the same time the oil coming from the pump and the oil contained in the cylinder to the discharge causing the lowering of the arms. The control spool “1” is in such a position to connect chamber “5” of differential valve directly to the discharge through hole “6”.
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Page 19: Operation 1
HYDRAULIC SYSTEM Operation 1: Assembly the plugs and washers on Auxiliary valve Metallic Plug Copper Washer Operation 2: Assemble the Auxiliary Valve on the Rockshaft Ÿ Take Out Domed Cap Nut Ÿ Copper Washers and Nut Ÿ Copper Washer Torque 3-3.5 Kgm Copper Washer Domed Cap Nut H-17... - Page 20 HYDRAULIC SYSTEM Operation 3: Starting the tractor. Ÿ Move the action lever on the auxiliary valve. Ÿ Checking the pressure on the gauge and setting the pressure with setscrew wrench. Ÿ Gauge to be used on pressure line from pump to inlet rockshaft turn the screw in clockwise direction for the Ÿ...
- Page 21 HYDRAULIC SYSTEM Operation 4: Return the action lever on auxiliary valve in neutral position. Ÿ Block the screw with the nut and washer with hexagonal wrench. Ÿ Recheck the setting of relief valve (move the action lever on the auxiliary valve). Ÿ...
- Page 22 HYDRAULIC SYSTEM Operation of Internal Levers in Controlled Position: Moving the control lever “L” (In the direction of the arrow) one can raise the arms and the internal levers affect the Control Valve in the following way:- The cam shaft “2”welded to lever “L” turns clockwise and rotates the cam lever “3” anticlockwise. This pushing on the roller cam bowl “4”.
- Page 23 HYDRAULIC SYSTEM In case of complete disassembly of the rockshaft it is necessary to make the follow adjustments:- 1. Adjustment of Control Valve Sensitivity Place The lift arms with the weight applied about the middle of the stroke so that the control valve is in the neutral Ÿ...
- Page 24 HYDRAULIC SYSTEM Fix the lever to the shaft by tightening completely the clamp with the fastening screw "1". Control by raising and lowering the lever "L" 3 or 4 times so that the arms always reach the same position at their highest position.
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Page 25: Re Assembly Of Hydraulic Lift
HYDRAULIC SYSTEM H 7.0 RE-ASSEMBLY OF HYDRAULIC LIFT Step - 1: Adjustment of push rod and linkage assy If the rockshaft is adjusted and if the hydraulic group Ÿ is disassembled one must always restore the measurement of 18mm. 18mm Assemble the push rod as shown in figure. - Page 26 HYDRAULIC SYSTEM Step - 2: Re-assembly of Rock Shaft Refit the Rock Shaft by using hammer as shown in Ÿ figure. Tighten the screw plug from ram arm for assy of Rock Ÿ Shaft as shown in figure. Refit the lift arms by using hammer. Ÿ...
- Page 27 HYDRAULIC SYSTEM Step - 3: Re Assembly of Hydraulic Cylinder Fit the hydraulic cylinder inside lift body. Ÿ Tighten the allen screw at lift body for fitment of Ÿ hydraulic cylinder. Tighten the banjo bolt of hydraulic cylinder. Ÿ H-25 S E R V I C E M A N U A L...
- Page 28 HYDRAULIC SYSTEM Step - 4: Re-assembly of Control Valve Assembly Refit the control valve assembly and tighten the hex Ÿ bolts of control valve body. Step - 5: Re-assy of Hydraulic Lift with Transmission Housing Assemble lift body assembly with transmission Ÿ...
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Page 29: Troubleshooting Of Hydraulic System
HYDRAULIC SYSTEM H 8.0 TROUBLESHOOTING OF HYDRAULIC SYSTEM DRAWBACK CAUSES REMEDIES Top up the level Insufficient oil level in the tank. The Rockshaft lifts, jerkily. Clean or replace the filter. Check Pump inlet filter clogged. the inlet pipe and any coupling and Infiltration of air into the pump, inlet pipe.
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