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Summary of Contents for Komatsu SK714-5
- Page 1 WEBM005600 SK714-5 SK815-5 SK815-5 turbo 00-1...
- Page 2 CONTENTS CONTENTS Page 10 STRUCTURE AND FUNCTION ..................10-1 20 TESTING AND ADJUSTING ..................... 20-1 30 DISASSEMBLY AND ASSEMBLY .................. 30-1 40 MAINTENANCE STANDARD ................... 40-1 00-2 SK714-5 SK815-5 SK815-5 turbo...
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Page 3: Important Safety Notice
Proper service and repair is extremely important for the safe operation of your machine. The service and repair techniques recommended by Komatsu Utility and describe in this manual are both ef- fective and safe methods of operation. Some of these operations require the use of tools specially designed by Komatsu Utility for the purpose. - Page 4 Fuel or oil on the floor can cause you to slip, or can even start fires. 18. As a general rule, do not use gasoline to wash parts. In particular, use only the minimum of gasoline when washing electrical parts. 00-4 SK714-5 SK815-5 SK815-5 turbo...
- Page 5 This section gives the judgement standards when inspecting disassembled parts. NOTE The specifications contained in this shop manual are subject to change at any time and without any no- tice. Contact your Komatsu Utility distributor for the latest information. SK714-5 SK815-5 SK815-5 turbo 00-5...
- Page 6 Symbol Item Remarks DISTRIBUTION AND UPDATING Any additions, amendments or other changes will be Special safety precautions sent to Komatsu Utility distributors. are necessary when performing the work. Get the most up-to-date information before you start any work. Safety Extra special safety precautions...
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Page 7: Hoisting Instructions
Sling wire ropes from the middle portion of the hook. Slinging near the edge of the hook may cause the rope to slip off the hook during hoist in g, and a se- rious accident can result. 00-7 SK714-5 SK815-5 SK815-5 turbo... -
Page 8: Standard Tightening Torque
± 45 ± 450 ---- 2900 4050 This torque table does not apply to bolts or nuts which have to fasten nylon or other parts non-ferrous metal washer. Nm (newton meter): 1 Nm = 0.102 kgm 00-8 SK714-5 SK815-5 SK815-5 turbo... - Page 9 11/16” - 16 3.4–3.9 33–38 13/16” - 16 5.2–5.8 51–57 1” - 14 8.2–9.2 80–90 1.3/16 - 12 12.2–13.3 120–130 1.7/16 - 12 15.3–17.3 150–170 1.11/16 - 12 18.4–20.4 180–200 2” - 12 20.4–24.4 200–240 00-9 SK714-5 SK815-5 SK815-5 turbo...
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Page 10: Coating Materials
COATING MATERIALS COATING MATERIALS The recommended coating materials prescribed in Komatsu Utility Shop Manuals are listed below: Nomenclature Code Applications Bostik 99 Used to apply rubber pads, rubber gaskets and cork plugs. Used to apply resin, rubber, metallic and non-metallic parts when a fast, strong Loctite 406 seal is needed. - Page 11 Violet–Black – – – COMPOSITION OF THE COLOURS The coloration of two-colour wires is indicated by the composition of the symbol listed. Example: G–V = Yellow-Green with longitudinal colouring G/V = Yellow-Green with transversal colouring 00-11 SK714-5 SK815-5 SK815-5 turbo...
- Page 12 Control valve: • 3-spool (standard) 21.5 21.5 21.5 • 4-spool (High-Flow) Work equipment (without bucket) • Arm • Work equipment support 171,5 171,5 • Bucket (L=1460 mm) 17,3 16,8 16,8 • Tilt cylinder • Dump cylinder 00-12 SK714-5 SK815-5 SK815-5 turbo...
- Page 13 Oil change quantity: quantity of oil necessary to fill the system or unit during the normal inspection and maintenance operations. ASTM: American Society of Testing and Materials SAE: Society of Automotive Engineers API: American Petroleum Institute SK714-5 SK815-5 SK815-5 turbo 00-13...
- Page 14 Transmission ............. 4 R.H. PPC Valve Pattern Change......60 Final drive ..............6 L.H. PPC Valve (Standard) ........64 Hydraulic circuit SK714-5 ........13 L.H. PPC Valve Pattern Change ......68 Hydraulic circuit SK815-5 - SK815-5 turbo ....14 Cylinders ..............72 Hydraulic pump............15 Electrical diagram (Engine line)........73...
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Page 15: Structure And Function
STRUCTURE AND FUNCTION P.T.O. P.T.O. RKS01090 1. Joint 2. Spring pin 3. Dumper 4. Flywheel cover 5. Hydraulic pump 10-2 SK714-5 SK815-5 SK815-5 turbo... -
Page 16: Power Train
A B C RKS00990 1. Engine 5. High-flow solenoid valve 2. Hydraulic pump 6. L.H. final drive 3. Control valve 7. R.H. final drive 4. Solenoid valve 8. Axle 4a. Servocontrol 4b. Speed increment 4c. Parking brake SK714-5 SK815-5 SK815-5 turbo 10-3... - Page 17 STRUCTURE AND FUNCTION TRANSMISSION TRANSMISSION View X RKS01001 Section A - A 1. L.H. final drive 2. Front trasmission chain 3. Rear trasmission chain 4. Master link 10-4 SK714-5 SK815-5 SK815-5 turbo...
- Page 18 STRUCTURE AND FUNCTION TRANSMISSION Section B - B Section C -C RKS01010 1. Front wheel 2. Axle housing 3. Sprocket 4. Shaft 5. Front trasmission chain 6. Rear wheel 7. Rear trasmission chain SK714-5 SK815-5 SK815-5 turbo 10-5...
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Page 19: Final Drive
PP2 Port – From solenoid valve group ST1 (C Port) PP2 Port – From solenoid valve group ST1 (C Port) (parking brake) (parking brake) DR Port – To hydraulic tank DR Port – To hydraulic tank 10-6 SK714-5 SK815-5 SK815-5 turbo... - Page 20 12. Spring 20. Flange 28. Plug 5. Pin 13. Piston 21. Collar 29. Spring 6. Gear 14. Brake spring 22. Gasket 7. Shoe 15. Bushing 23. Plug 8. Brake piston 16. Retainer plate 24. Spring SK714-5 SK815-5 SK815-5 turbo 10-7...
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Page 21: Hydraulic Motor
When an increase in speed is demanded, the oil is sent under pressure to the command piston (10). The command pi- ston (10) moves to the left ( ) until the surface “B” makes contact with the housing and the angle of the swash plate β becomes (the displacement of the motor is reduced). 10-8 SK714-5 SK815-5 SK815-5 turbo... - Page 22 The force exerted by the oil is greater than the force of the springs (2) and the piston (1) is therefore pushed to the right ( ) thus releasing the friction disk (3) and permitting rotation of the cylinder block (7) (and also of the drive shaft). RKS01060 SK714-5 SK815-5 SK815-5 turbo 10-9...
- Page 23 Download the full PDF manual instantly. Our customer service e-mail: aservicemanualpdf@yahoo.com...
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