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6. Hydraulic system

Hydraulic

oil pump

Type

Gear pump

Displacement

32 ml/r

Control

valve

Type

Two-pool type with relief valve, flow divider and tilt valve

Setting

pressure

17.5MPa

Dividing

pressure

7 MPa (2,2.5t) / 9 MPa (3t) / 10.5 Mpa (3.5t)

Flow rate

11L/min (2-2.5t) 13L/min (3-3.5t)

Lift

cylinder

Type

Single-action piston type, with cut-off valve

Bore Dia.

50 (2,2.5t)

56 (3,3.5t)

Stroke

1495mm (Only for 3m lift height)

Tilt

cylinder

Type

Double-action piston type

Bore Dia.

80×

35 (mm)

Stroke

127.5mm

Hydraulic oil amount

42L

6.1 General description

The hydraulic system consists of hydraulic pump, control valve, lift cylinder, tilt

cylinder, and oil pipe-lines etc. The oil tank is installed on the right side of the truck.

6.2 Hydraulic oil pump (Fig6.1)

The hydraulic oil pump is a gear pump. It is drived directly by the power takeoff

device of the engine. The oil of the oil tank flows to the control valve through the main

pump.

The hydraulic oil pump consists of pump body, a pair of gears, lining plate and snap

rings. The pressure-balance method makes the lining plate press on the side face of gear

owing to outleting oil between the lining plate and pump body. This pump uses

pressure-balance type bearings and a special lubrication method so as to minimum the

gear clearance.

6.3 Control valve & flow divider (Fig6.2)

The control valve (2 spool type) consists of four valve housing, two spool valves, one

relief valve and one flow divider. The four valve housing is assembled together with three

stud bolts and nuts. The tilt spool valve consists of a tilt lock valve.

Содержание F Series

Страница 1: ...1...

Страница 2: ...F Series CPCD20 25 30 35F CPQ Y D20 25 30 35F Internal CombustionCounterbalancedForkliftTruck OPERATION SERVICE MANUAL KION Baoli Jiangsu Forklift Co Ltd 2 3 5T...

Страница 3: ...bination meter so they have a lot of advantages such as good performance easy operation wide vision flexible steering reliable braking powerful and aesthetic appearance This manual states the specific...

Страница 4: ...truck 13 6 Information of safety operation 15 7 Caution plate 19 Periodic inspection and servicing 24 1 General rules on inspection and maintenance 24 2 Inspection content 25 3 Periodic replacement ta...

Страница 5: ...rating device of parking brake 54 4 5 Inspection of wheel brake 55 4 6 Troubleshoot 56 5 Steering system 57 5 1 Hand wheel 58 5 2 Cycloid gear type powered steering unit 58 5 3 Inspection after reasse...

Страница 6: ...nance and adjustment 75 8 Electric system 78 8 1 General description 78 8 2 Brief explanation for operation 79 8 3 Instructions of meter panel 80 8 4 Principle diagram of electrical system 85 8 5 Diag...

Страница 7: ...1 About F series forklift truck 1 External view and technical parameter Fig1 1 External view...

Страница 8: ...12PR 28 9 15 14PR Rear 6 00 9 10PR 6 50 10 10PR Tread Front B2 mm 970 1000 Rear B3 mm 970 Wheelbase Y mm 1650 1700 1760 Ground clearance full load no load Mast M mm 85 105 110 135 Frame F 140 145 170...

Страница 9: ...d wide vision for the use of two stage CC extension type mast and hidden type tilt cylinder device The forklift truck can be fitted with 2 stage or 3 stage full free lift mast having different lifting...

Страница 10: ...e mentioned size and capacity is only for a reference which may be adjusted because of configuration difference or technology optimization 1 Outer mast 2 Inner mast 3 Lift chain 4 Lift cylinder 5 Load...

Страница 11: ...n signal switch 5 Lifting lever 6 Tilting lever 7 Operating lever attachment 8 Combination meter 9 Tool kit 10 Accelerator pedal 11 Brake pedal 12 Ignition switch 13 Release lever parking brake 14 Inc...

Страница 12: ...switch to the START position while the engine is running Do not leave the switch in the ON position when the engine is stopped It may cause over discharge of the battery Do not operate the starter mot...

Страница 13: ...horn will sound even when the ignition switch off 3 Lifting lever Fig 1 3 5 1 Lower 2 Raise Raise and lower the forks Raise Pull backward Lower Push forward The lifting speed can be adjusted by the de...

Страница 14: ...inching pedal Note When control lever is shifted to forward reverse the vehicle will move even the accelerator pedal stays neutral 7 Parking brake pedal Fig 1 3 16 Parking brake release lever Fig 1 3...

Страница 15: ...down on the hood until you hear a clicking sound Caution Operating the vehicle without firm locking of the engine hood is very dangerous Be sure to check firm locking before operating the vehicle 3 F...

Страница 16: ...ing and driven gear in the reducer after the new forklift truck working for 200 hours 2 Inspection before operation Please pay attention to the following items in order to make the vehicle working wit...

Страница 17: ...be morn than 15 seconds Restarting should be after 30 seconds As the engine doesn t work after some times starting should check and remove the trouble do not keep the starting motor engaged for a lon...

Страница 18: ...waste cloth and water if needed b While washing the body of the truck check general condition of the truck Especially check the truck s body for recess or damage and tyres for wear and nails or stone...

Страница 19: ...n renew oil c Discharge foreign matter and water from the hydraulic reservoir and fuel tank d Remove the cylinder cap check the valves and the rocker shafts for the clearance in normal data e Add cool...

Страница 20: ...hould be used The balance weight fork and mast of the truck all have their appointed sling position 4 Towing of forklift truck a The draw bar is installed below the counter weight When operating the d...

Страница 21: ...achment should be operated as a loaded truck 10 Connect the power and turn on the key switch select the position of direction switch check the truck for normal operation by turning steering wheel depr...

Страница 22: ...handle bulky goods To prevent the collapse of stacked goods tighten them Forbid loading loose or little volume goods without pallet 24 When loading the goods lower the forks to the floor After the for...

Страница 23: ...rks of the truck with lifting height more than 3m lift take the protection measures if necessary 39 Before the truck decelerating and stopping don t change gear to reverse shift so as to ensure the sa...

Страница 24: ...people the forklift is forbidden operating in airtight space or you may be choked by the tail gas The tail gas s exhausting standard shouldn t be lower than the no load mechanical vehicle exhaust stan...

Страница 25: ...84 m s 2 CPCD30F 87 dB A 105 dB A 107 dB A 0 91 m s 2 CPCD35F 86 dB A 104 dB A 107 dB A 0 84 m s 2 CPQD30F 86 dB A 103 dB A 105 dB A 0 85 m s 2 CPQD35F 87 dB A 104 dB A 105 dB A 0 87 m s 2 7 Caution p...

Страница 26: ...20 3 Nameplate of forklift truck 4 Lubrication system 5 Capacity chart 6 Inspections before starting 7 Adjust parking brake...

Страница 27: ...21 8 Use parking brake 9 Add hydraulic oil 10 Add fuel gasoline 11 Add fuel 12 Add antifreeze 13 Tyre safety charging tyre...

Страница 28: ...22 14 Tyre pressure decal charging tyre 2 2 5t forklift truck 3 3 5t forklift truck 15 Sling point indication 16 Sling decal 17 Forbid entering into the space behind the mast...

Страница 29: ...23 18 Forbid conveying person 19 Hand caution 20 Fan hurting hand 21 Hood crushing hand 22 Belt pulley thumb hand decal 23 Overturn caution...

Страница 30: ...lic system 2 Check the reliability of the steering and braking system 3 Check the reliability of mast driving axle and steering axle connecting with the frame 4 Check all wheels for tightness Irregula...

Страница 31: ...erred to the corresponding section in the manual or according to the decal of the vehicle 2 After the adjustment check if air is not leaking from the valve Damage crack and wear of tyres and rims Chec...

Страница 32: ...om the filler port 3 If the engine coolant is not visible through the filler port fill appropriately diluted coolant LLC to the port Note To close and tighten the radiator cap match the pawl on the re...

Страница 33: ...ossible Select the brand number of the engine oil according to the request of the engine or the corresponding section of the manual Leakage inspection Check the engine compartment for any oil or fuel...

Страница 34: ...k a professional serviceman for inspection if any abnormality is found Inching and brake pedal inspection 1 Inching and brake pedal 1 Manually depress the inching and brake pedal to check the play unt...

Страница 35: ...evers to check their operating state If anything unusual is found have the vehicle inspected by a professional serviceman Steering wheel inspection Perform the inspection after starting the engine 1 C...

Страница 36: ...of operation or monthly periods of operation whichever comes sooner Every 6 Weeks 3 6 12 Months Every 250 500 1000 2000 Hours Engine oil Engine oil filter Cooling water except LLC LLC is every 2 years...

Страница 37: ...ct and service 7 Steering knuckle king pin Replace 8 Oil tank A MP grease 9 Engine crankcase B Engine oil 10 Pump transmission device C Hypoid gear oil 11 Foot operating assy D Hydraulic oil 12 Direct...

Страница 38: ...ng the three catches fixing the element Element cleaning 1 Element 1 Tap the element filter paper lightly without causing any damage or blow dust off with compressed air 7kg cm 2 or less from inside 2...

Страница 39: ...nd extract it again to check if the oil level is among the gridding lines on the level gauge Retightening of bolts and nuts Retighten each bolt and nut on the chassis and load handling system Greasing...

Страница 40: ...e the radiator and or cylinder block In such cases antifreeze coolant must be used When long life coolant LLC is used it must be changed once every two years Freezing temperature varies depending on t...

Страница 41: ...2 Drain plug 3 Drain hose The sedimenter separates the water contained in the fuel It is integrated with the fuel filter If the sedimenter warning lamp comes on immediately drain water according to th...

Страница 42: ...n to wash it off with water thoroughly the spot and adjoining area When the battery is dead 1 Dead battery vehicle 2 Engine hanger 3 To frame 4 Booster cable 5 Rescue battery When a booster cable is a...

Страница 43: ...3 4 L HV 20 Low temperature antiwear hydraulic fluid L HV32 Rando HDZ 32 Shell tellus oil 32 Univis N32 ISO 6743 4 L HS 40 Low pour point antiwear hydraulic fluid L HS32 Mobil DTE 13M Shell tellus T32...

Страница 44: ...2 Engine parameter and appropriate truck model Engine model Rated output Speed Kw r p m Rated torque Speed N m r p m Cylinder number Bore Stroke mm Total displacement L Weight Kg Appropriate truck mod...

Страница 45: ...k you must carry out periodic inspection and adjustment of power system 1 Regularly clear the dust of air cleaner 2 Regularly replace oil filter and fuel filter 3 Check and apply the coolant periodica...

Страница 46: ...ydraulic drive unit Torque converter Type Three elements single stage two phases Torque ratio 3 Set pressure 0 5 0 68 MPa Charging pump Type Inner mesh gear pump Flow rate 27 L min 2000rpm 1 5MPa Hydr...

Страница 47: ...Seal ring 22 Shift arm 39 Single row tapered roller bearing 6 O ring 23 Transmission case cover 40 O ring 7 Charging pump 24 Shift shaft 41 Oil seal 8 Oil seal 25 O ring 42 Single row tapered roller...

Страница 48: ...end of which is connected with the axle housing The differential case is bilateral symmetry The differential includes two halfshaft gears and four planet gears The thrust washers are installed between...

Страница 49: ...flow angle slows down and the value of the output torque keeps on decreasing until the liquid flows into the leaves of the idler pulley in opposite direction When original reaction torque acts in the...

Страница 50: ...rd or backward position the circuit form the slide valve to either the forward clutch or the backward clutch is closed accordingly thus causing corresponding clutch come to work When a clutch is at wo...

Страница 51: ...bble in oil Measure and adjust pressure B Slipped clutch 1 Oil pressure lower Measure and adjust pressure 2 Seal ring damaged Check and replace 3 Piston ring of the clutch damaged Check and replace 4...

Страница 52: ...of oil pump Check and replace 4 Shaft is broken Check and replace 5 Too low oil pressure Check oil pump for suction pipe Gear box 1 Lower oil amount Check oil level and add oil 2 Seal ring is worn Che...

Страница 53: ...ted to the half shaft through the differential and drives the front wheels through the hubs Each hub is fixed on the axle housing with two tapered roller bearings so that the half shafts bear only tor...

Страница 54: ...ake the tops of the rim mounting bolts face outside c Don t stand near the tyre when inflating air d When the tyre pressure reaches 98KPa 1kgf cm2 knock the tyre lightly to make the inner tyre and gas...

Страница 55: ...49 Fig3 2 Add grease Fig3 3 Measure starting torque Structure of rim bolt Fig3 4 Wheel assembly 1 Tyre 4 Inner rim 7 Spring washer 2 Air valve 5 Outer rim 8 Nut rim 3 Bushing 6 Rim bolt...

Страница 56: ...n shim Tighten or replace Blocked air hole Clean or replace Worn or damaged oil seal Replace Noisy differential Worn or damaged gear Replace Worn or damaged bearing Replace Misadjusted gear clearance...

Страница 57: ...exterior of the cylinder is protected from dust by means of a rubber dust cover The piston is actuated through the push rod by operation of the brake pedal As the brake pedal is pressed the push rod p...

Страница 58: ...harply braked See Fig4 1 Fig4 1 Master cylinder 1 Link rod 6 Piston 2 Push rod 7 Primary cup 3 Dust cover 8 Spring 4 Snap ring 9 Check valve 5 Secondary cup 4 3 Wheel brake The wheel brake is the inte...

Страница 59: ...ly when the truck in reverse travel is braked The secondary brake shoe comes into contact with the brake drum and rotates together As a result of this the parking pull rod turns right around the point...

Страница 60: ...djuster clockwise the force increases otherwise when you turn the adjuster counterclockwise the force decreases Press force 50kg Operating method Turn off the key press the parking brake pedal with le...

Страница 61: ...If necessary replace it 3 Check the operating cylinder spring for free length If necessary replace it 4 Check the friction piece for thickness to see if it is excessively worn If necessary replace it...

Страница 62: ...ign matter adhered on it Repair or replace 2 Deformed backing plate or loose bolts Repair or replace 3 Deformed shoe or incorrect installation Repair or replace 4 Worn friction piece Replace 5 Loose w...

Страница 63: ...iston type Cylinder bore mm 70 Diameter of piston rod mm 50 Stroke mm 160 Rated pressure Mpa 7 9 10 5 Diameter of handwheel mm 290 Pressure of steering wheel Mpa 0 84 0 76 The steering system principa...

Страница 64: ...can be mastered easily through practice 5 2 Cycloid gear type powered steering unit The powered steering unit Fig5 2 can transmit the pressure oil from the flow divider by pipes to the steering cylin...

Страница 65: ...y Fail to turn handwheel Oil pump damaged Replace Flow divider blocked or damaged Clean or replace Hose or joint damaged or pipeline blocked Clean or replace Difficult to turn handwheel Too low oil pr...

Страница 66: ...kle steering through tie rod causing wheel s deflection and truck s steering The steering axle is bolted to the rear frame by the buffer Fig5 3 Steering axle 1 Axle body 9 Tyre 17 Oil seal 2 Tie rod 1...

Страница 67: ...ig5 5 fill up the chamber formed by wheel hubs wheel hub bearing and wheel hub covers with lubricating grease Coat the lips of the oil seals with lubricating grease 2 Press the hub bearing into the hu...

Страница 68: ...8N m 7 If the torque value necessary to rotate the hub is more than the specified one above mentioned screw out the castle nut for 1 6 turn and measure the torque value then 8 When the torque value me...

Страница 69: ...ed on the right side of the truck 6 2 Hydraulic oil pump Fig6 1 The hydraulic oil pump is a gear pump It is drived directly by the power takeoff device of the engine The oil of the oil tank flows to t...

Страница 70: ...64 Fig6 1 Hydraulic pump Fig6 2 Control valve 1 Pump body 2 Driving gear 3 Driven gear 4 Front cover 5 Rear cover 6 Lining plate 7 Seal ring 8 Ring 9 Oil seal 10 Snap ring...

Страница 71: ...of the flow divider is quite simple It is of direct overflow type and ensures the constant pressure of the power steering system by balancing the oil pressure with fixed spring force When turning cham...

Страница 72: ...crew out the measured hole plug from the inlet port of control valve and install the oil pressure gauge 20MPa on it b Operate the tilt lever measure the pressure when the stroke is to the bottom c Whe...

Страница 73: ...piston up When push the lift spool the circuit between the lower part of the lift cylinder and the oil tank is connected and the piston begins to descend due to the weight of the load and all of lifti...

Страница 74: ...ng on its outer periphery At the bottom of the lift cylinder there is a cut off valve which operates when the high pressure hose bursts for any reason to prevent the load form dropping from abruptly B...

Страница 75: ...oil flows in the reverse position When the oil passes the throttle plate 5 and a pressure difference overcomes the force of the spring 2 and moves the valve core 7 right thus the oil flow being decre...

Страница 76: ...s the piston rod The guide sleeve is fitted with dust seal snap ring Yx ring and O ring to prevent oil leakage and keep dust off Fitted with them the guide sleeve is screwed into the cylinder body Whe...

Страница 77: ...Disassembly and clean Vibrate and the oil pressure rises slowly Spool is held up Disassembly and clean Exhaust is inadequate Exhaust fully The oil pressure of the steering oil circuit is more than th...

Страница 78: ...wn Misadjusted relief valve Adjust pressure to specified value Air entering into the pump Retighten loose connections for suction pipe Add oil into oil tank Replace oil seal Noisy oil pump Worn suctio...

Страница 79: ...Lift bracket 2 Inner mast 5 Load backrest 8 Fork 3 Lift cylinder 6 Lift chain 7 1 General description The lifting system is the type of lifting and descending vertically with the two stage rollers It...

Страница 80: ...s The main roller shafts are welded on the lift bracket The side rollers fitted on the lift bracket with bolts They roll along the flank plate of the inner mast and rolling clearance can be adjusted w...

Страница 81: ...inder as following 1 Install the piston rod in the upper beam of the inner mast without shims 2 Lift the mast slowly to the max stroke of the cylinder and check the two cylinders synchronize or not 3...

Страница 82: ...l 7 2 3 Replace rollers of the lift bracket 1 Place a pallet on the forks and let the truck parking on the horizontal ground 2 Make the forks and the pallet down to the ground 3 Disassemble the end ni...

Страница 83: ...r the lift cylinder and the bottom of the outer mast Disassemble the lift cylinders and the oil pipes between the two cylinders without loosen the oil pipe joints 6 Main rollers on the upper outer mas...

Страница 84: ...be dealed with high precision digital processing The meter consists of a pointing meter drived by two imported step motors and an hour meter with a LCD screen The step motor meter has high reliability...

Страница 85: ...se shift the backing lamps light and the back buzzers sound 2 Turning handle switch Pull the turning handle switch to the ON position the front and rear combination lamps clearance tail light Pull the...

Страница 86: ...warning lamp is on After 1 2s the lamp is off automatically If this lamp becomes on while the engine is working it means too much water has been accumulated in the water separator After pushing the h...

Страница 87: ...type engine 3 Indicator preheating When the ignition switch is turned on the lamp lights and preheating starts The lamp goes out automatically when preheating is over The engine will start easily Cau...

Страница 88: ...ut it is necessary to bleed air from the fuel system 8 Timing area After connecting the ignition switch the meter will indicate the working hours It will begin to time after starting the engine The un...

Страница 89: ...ature begin from 65 will be displayed in the upper left of LCD 12 Warning lamp water separator Before starting the engine put the key switch to the ON position the meter will do the check automaticall...

Страница 90: ...and goes out when the engine starts b If the lamp lights while the engine is running maybe the engine oil is insufficient or the lubrication system is faulty Stop the operation immediately and ask a...

Страница 91: ...contact with our company for maintenance 8 4 Principle diagram of electrical system Fig8 2 1 Principle diagram of electrical system 4JG2 Dachai 498 engine Fig8 2 2 Principle diagram of electrical syst...

Страница 92: ...Power switch 05 Switch turning lamp 06 Power ignition switch 07 Switch light 08 Switch start 09 Power headlamp 10 Preheating indicating 12 Main power 13 Preheating fuse 14 Starter 15 Optional power 1...

Страница 93: ...ower switch 05 Switch turning lamp 06 Power ignition switch 07 Switch light 08 Switch start 09 Power headlamp 10 Preheating indicating 12 Main power 13 Preheating fuse 14 Starter 15 Optional power 1 1...

Страница 94: ...04 Power switch 05 Switch turning lamp 06 Power ignition switch 07 Switch light 08 Switch start 09 Power headlamp 10 Preheating indicating 12 Main power 13 Preheating fuse 14 Starter 15 Optional power...

Страница 95: ...89 Fig8 3 1 Diagram of harness 4JG2 engine...

Страница 96: ...90 Fig8 3 2 Diagram of harness Dachai 498 engine...

Страница 97: ...91 Fig8 3 3 Diagram of harness Xinchai 498engine...

Страница 98: ...92 Fig8 3 4 Diagram of harness Yanmar 4TNE98 engine...

Страница 99: ...93 NOTE...

Страница 100: ...94...

Страница 101: ...6126 P C 214500 Add No 8 Xinzhou Road Economic Development Zone Jingjiang Jiangsu China www baoli mh com We reserve the right to make any changes or modifications of pictures and specifications in th...

Страница 102: ......

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