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Introduction This manual provides important information to familiarize you with safe operating and maintenance procedures for your SAKAI roller. Even though you may be familiar with similar equipment you must read and understand this manual before operating or servicing this unit.
SAFETY 1. GENERAL SAFETY 1-1. Understanding the Safety Symbols and Words The words DANGER, WARNING, and CAUTION are used with the safety-alert symbol. DANGER identifies the most serious hazard. When the symbols DANGER, WARNING and CAUTION are displayed, become alert. Your safety or those around you may be involved. NOTICE is used to provide important information that is not hazard related.
SAFETY • The machine is designed specifically for the compaction of asphalt or soil road construction materials. Use of the machine for other purposes such as towing other equipment is considered contrary to the designated use. The manufacturer cannot be responsible or held liable for any damage resulting from such use.
SAFETY • Observe all safety instructions and warnings attached to the machine. • Make sure all safety instructions and warnings on the machine are complete and perfectly legible. • Stop the machine immediately in the event of any malfunction. Report any malfunction immediately to the supervisor or other person of authority.
SAFETY 1-7. Starting • Start the machine only from the driver’s seat and always wear the seat belt. • Watch that the warning lights and indicators during start-up and shutdown are working in accordance with operating instructions. • Watch that no one is in danger before starting and when moving the machine. •...
SAFETY • Park behind a safe barrier, use proper flags, and warning devices, especially when parking in areas of heavy traffic. 1-10. Maintenance • In any performing any work concerning the operation, adjustment or modification of the machine or it’s safety devices or any work related to maintenance, inspection or repair, always follow the start-up and shut-down procedures in the Operator’s Manual and the Maintenance Manual.
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Always clean up any spilled fuel. • Ensure safe operation, optimum performance of the machine and its warranty by using only genuine SAKAI replacement parts. • Use only the specified fluids and lubricants. Substitute only products known to be equivalent from reputable manufacturers.
SAFETY • Observe all product safety regulations when handling fuel, oils, grease, engine coolant and other chemical substances. Be careful especially when these items are hot as there is a risk of burning or scalding. • Operate internal combustion engines and fuel operated heating systems only in adequately ventilated premises.
SPECIFICATIONS 1. SPECIFICATION DATA 1-1. HS67ST (KUBOTA Engine Type) Φ355 Φ355 2475 0478-99018-0-10294-A Model HS67ST (KUBOTA engine type) Operating weight 750 kg 1,655 lbs. Weight Front axle 320 kg 705 lbs. Rear axle 430 kg 950 lbs. Overall length 2,475 mm 97 in.
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SPECIFICATIONS Name KUBOTA E75-ENB3 Diesel Engine Water-cooled, 4-cycle, 1-cylinder, horizontal mounted, Model overhead valve, swirl combustion chamber type Number of cylinders - Bore × Stroke 1-77 mm × 70 mm ( 3.031 in. × 2.756 in.) Displacement 0.325 L 19.8 cu.in Rated speed 2,500 min ( 2,500 rpm...
SPECIFICATIONS 1-3. HS67ST (YANMAR Engine Type) Φ355 Φ355 2475 0478-99024-0-10325-0 Model HS67ST (YANMAR engine type) Operating weight 740 kg 1,630 lbs. Weight Front axle 320 kg 705 lbs. Rear axle 420 kg 925 lbs. Overall length 2,475 mm 97 in.
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SPECIFICATIONS Name YANMAR L70V6-RESA Diesel Engine Air-cooled, 4-cycle, 1-cylinder, vertical mounted, Model overhead valve, direct-injection type Number of cylinders - Bore × Stroke 1-78 mm × 67 mm ( 3.071 in. × 2.638 in.) Displacement 0.32 L 19.5 cu.in Rated speed 3,600 min ( 3,600 rpm 4.3 kW...
SPECIFICATIONS 2. TABLE OF STANDARD VALUES 2-1. Engine 2-1-1. Engine (KUBOTA) Item Standard value Remarks Engine model KUBOTA E75-ENB3 Diesel Engine Rated output 4.6/2,500 kW/min 6.2/2,500 HP/rpm ) Max. rpm under no load 2,660 rpm Min. rpm under no load Engine stops when throttle lever is at stop position Cylinder head tightening torque 59 to...
SPECIFICATIONS 3. FUEL AND LUBRICANTS SPECIFICATION 3-1. Rating 3-1-1. Rating (KUBOTA and YANMAR engine types) Ambient temp. and applicable viscosity rating Service Applicable -15 to 30°C 0 to 40°C 15 to 55°C Lubricant classification Standards (5 to 86°F) (32 to 104°F) (59 to 131°F) Cold Moderate...
ENGINE AND CONTROLS 2. CONTROL SYSTEMS 2-1. Forward-reverse Control/Throttle Control Forward-reverse control cable Bush Rod end Apply grease Control handle Panel Stopper bolt (Stop) : M 8×80 Lock nut : M 8 SECTION A-A Rod end Stopper bolt (Full) : M 8×45 Rod end Nut : M16 F-R lever...
HYDRAULIC SYSTEMS 1. SYSTEM CIRCUIT DIAGRAM 1-1. Graphic Symbols for Hydraulic Circuits Basic Symbols Pump, Motors and Cylinders DESCRIPTION SYMBOL DESCRIPTION SYMBOL Lines: Hydraulic Pumps: Fixed Displacement Main Working Unidirectional Pilot Control Bidirectional Drain or Bleed Variable Displacement Lines, joining Unidirectional Not Connected Bidirectional...
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HYDRAULIC SYSTEMS Valves Methods of Operation DESCRIPTION SYMBOL DESCRIPTION SYMBOL Spring Check Valve Manual Shut Off (On-Off) Manual Pressure Compensated Pressure Relief Reversing Motor Flow control, adjustable Pilot Pressure: Internal Supply Valve Symbols: The basic valve symbol Remote Supply one or more squares with lines representing Solenoid: flow paths and flow con-...
HYDRAULIC SYSTEMS 2. PROPULSION HYDRAULIC SYSTEM 2-1. Propulsion Hydraulic Piping 2-1-1. Propulsion hydraulic piping (1) Hose HydrauIic oil tank) Hydraulic oil tank Hose PB2) Hose (PB1 SECTION A-A Hose (HydrauIic oil filter VIEW B The letters and figures (such as PT and PB2) show each port and the arrow ( ) symbols show the hose connection and the direction of the flow of the oil.
HYDRAULIC SYSTEMS 2-1-2. Propulsion hydraulic piping (2) Hose (Front block Rear block) Hose Rear block ) Rear block Front block SECTION A-A Hose Front block) Hose Hose (Rear block RMA) (Front block FMB) Hose Hose The letters and figures (such as FMA and FMB) show each port and the arrow ( ) symbols RMB) (Rear block...
HYDRAULIC SYSTEMS 3. STEERING SYSTEM 3-1. Steering Hydraulic Piping Hose (VA1 Valve block Hose (VB1 Steering cylinder The letters and figures (such as L1 and L2) show each port and the arrow ( ) symbols show the hose connection and the direction of the flow of the oil. 0478-32802-0-10188-B 4-012...
ELECTRICAL SYSTEM 3-2. Regulator/Rectifier Unit (HONDA Engine Type) Electrical circuit diagram HS67ST-05002 Specifications • Average rectified current 10 A • Regulated voltage : 14.5 ± 0.5 5-008...
DRUMS 1. DRUMS 1-1. Front Drum Nilos ring Ball bearing Spacer Retaining ring Fill grease Bolt M12×40 Bolt M 8×35 108 N m 23 N m (80 lbf ft) N•m (17 lbf ft) N•m DETAIL A Gear Ball bearing Fill grease Bracket Bolt M12×45 Case Retaining ring...
DRUMS 1-2. Rear Drum Nilos ring Ball bearing Spacer Retaining ring Fill grease Ball bearing Bolt M12×40 Bolt M 8×35 DETAIL A 23 N m 108 N m (80 lbf ft) (17 lbf ft) N•m N•m Retaining ring Gear Bracket Bolt M12×45 Bolt M 6×30 Spring Stopper Fill grease...
INSPECTION AND ADJUSTMENT 1. INSPECTION AND ADJUSTMENT 1-1. Safety Precautions for Inspection and Adjustment WARNING Unexpected machine movement may cause a serious accident. When inspecting the machine while the engine is running, always follow the instructions below. • Park the machine on level, flat ground. •...
④ With propulsion load at maximum, slowly move F-R lever to the side to be measured. • Then, read pressure indicated by pressure gauge. HS67ST-09001 HS67ST-09001 ⑤ After measuring, promptly return F-R lever to “N”. Maximum circuit pressure ★...
② S tart the engine and set throttle lever to “FULL”. • Then, read pressure indicated by pressure gauge. Standard charge relief pressure setting ★ : 0.98 MPa (142 psi) ± 0.2 ± 29 HS67ST-09002 HS67ST-09002 PG002003 PG002003 9-003...
± 41 ① Set speed adjusting lever (1) of the engine to the maximum speed position (A). Example : KUBOTA engine Example : KUBOTA engine HS67ST-09010 HS67ST-09010 ② Attach control cable (2) to speed adjusting lever (1). HS67ST-09005 HS67ST-09005 9-005...
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: 3,850 ± 150 YANMAR : 3,800 ± 30 ⑧ U sing lock nuts (4), firmly secure stopper bolts (5). HS67ST-09004 HS67ST-09004 (NOTICE) • If maximum no-load rotational speed is not in standard range, adjust injection nozzle, or repair or replace fuel injection pump or carburetor.
① S et control lever (1) on propulsion pump side at “N”. ② Attach control cable (2) to control lever (1). HS67ST-09007 HS67ST-09007 ③ Set F-R lever in “N”. ④ Attach control cable (2) to F-R lever (3).
TROUBLESHOOTING 1. BASIC TROUBLESHOOTING Refer to following basic troubleshooting table if product have some problems or failures. If the problem cannot be remedied, contact to SAKAI authorized dealer or SAKAI service department. Symptom Cause Action KUBOTA, YANMER Engine Engine will not start or Starter motor does not run.
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TROUBLESHOOTING Symptom Cause Action HONDA Engine Engine will not start or No fuel in tank. Confirm no fuel leak and fill with fuel in tank. engine malfunction. No fuel at carburetor. Clean fuel filter or strainer. Fuel valve does not open properly. Disassemble and check fuel valve.
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TROUBLESHOOTING Symptom Cause Action Steering dose not turn Left/right turn switch is faulty. Check and replace left/right turn switch. or hard to turn. Relief valve is open or setting pressure is Measure steering circuit pressure. low. Internal leakage of steering cylinder. Repair steering cylinder or replace it if necessary.
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