mecalac 14 MBX Page 27 Handbook Of Repair Download

Page: 27 / 82

30750

14MBX

Hydraulic diagrams

9.1

Travel circuit

Hydraulic reservoir

Transfer movement engine

Oil cooler

Transfert movement pump

Non-return valve

Sequence valve

Gear change blocks

Rear axle

Summary of Contents for 14 MBX

Page 1: ...HANDBOOK OF REPAIR MANUFACTURER MECALAC SAS...

Page 2: ......

Page 3: ...copic stabilizers 16 6 Towing 17 6 1 Disconnection of the hydrostatic travel 17 6 2 If the turntable is badly oriented 18 7 Transporting the machine 19 7 1 Loading on a trailer 19 7 2 Slinging for lif...

Page 4: ...12 4 Air conditioning relays box option under the cab floor 50 13 Parts list of the electric diagram 51 14 Adjustment procedure 53 14 1 Adjustment Procedure for the Heat Engine 53 14 2 Hydraulic adju...

Page 5: ...ed to familiarise the user with the machine and its designated use The instruction manual contains important information on how to operate the machine safely properly and most efficiently Observing th...

Page 6: ...n both axles 2 5 Turntable The turntable is connected to the front chassis section by a slewing crown wheel The turntable supports the operator s cab the excavator s equipment and the counterweight Th...

Page 7: ...er is the tool holder permitting the instant changing of the bucket or tool from the cab without manual intervention The bucket or tool has mechanical and automatic locking only their unlocking is hyd...

Page 8: ...14MBX 30750 6 M1...

Page 9: ...picyclic wheel reducer 4 planet wheels 1 6 Self blocking differential limited slip 45 Integrated oil bath hydraulic disc brakes 8 discs at the front 8 discs at the rear 3 3 Capacities Hydraulic oil ta...

Page 10: ...erate 2 speeds for both directions of travel selected by the Commodo electric control i e in all 4 speeds RANGE 1 L speed from 0 to 4 kph H speed from 0 to 12 kph RANGE 2 L speed from 0 to 10 kph H sp...

Page 11: ...oportional function controls by manipulators or foot operated controls supplied at low pressure with stand by accumulator 3 5 3 Slewing and hydrostatic steering circuit Hydrostatic steering Double act...

Page 12: ...X 30750 10 M1 4 Equipment s travel curves 4 1 In back hoe bucket position 0 m 1 m 8 m 2 m 3 m 4 m 5 m 6 m 7 m 7 m 6 m 5 m 4 m 3 m 2 m 1 m 0 m 1 m 2 m 3 m 4 m 8 m 9 m 5 m 4520 4650 2440 7825 1420 6270...

Page 13: ...30750 14MBX M1 11 4 2 In loading bucket position 7 m 6 m 5 m 4 m 3 m 2 m 1 m 0 m 1 m 2 m 3 m 4 m 8 m 9 m 5 m 0 m 1 m 8 m 2 m 3 m 4 m 5 m 6 m 7 m 2530 3430 1360 6780 4840 45...

Page 14: ...quipment used without any offset Front and rear chassis sections aligned Without any tool bucket loader etc with handling plate hook Stability loads and hydraulic limits according to standard ISO 1056...

Page 15: ...quipment used without any offset Front and rear chassis sections aligned Without any tool bucket loader etc with handling plate hook Stability loads and hydraulic limits according to standard ISO 1056...

Page 16: ...nt used without any offset Front and rear chassis sections aligned Rear axle oscillation locked Without any tool bucket loader etc with handling plate hook Stability loads and hydraulic limits accordi...

Page 17: ...ithout any offset Front and rear chassis sections aligned Rear axle oscillation locked Without any tool bucket loader etc with handling plate hook Stability loads and hydraulic limits according to sta...

Page 18: ...quipment used without any offset Front and rear chassis sections aligned Rear axle oscillation locked Without any tool bucket loader etc with handling plate hook Stability loads and hydraulic limits a...

Page 19: ...ke only after connecting the machine to the tractor s towing bar Note If the accumulator pressure is not sufficient to release the parking brake red indicator light 1 fig 4 unscrew the ram rod s lock...

Page 20: ...at the brake is filled with oil Connect the grease gun 4 fig 6 Operate the gun until the pressure gauge reads 30 bars 1 fig 6 Align the turntable and lock it mechanically 1 fig 7 Tow the machine Cause...

Page 21: ...them originally Fastening points A B C fig 3 Lock the chassis 1 fig 1 Lock the turntable 1 fig 2 Position the equipment so that the top part is below the height of the cab while resting it on the tool...

Page 22: ...m vertical position 2 fig 4 and fig 6 Lock the oscillation 1 fig 5 The machine will not be articulated Lock the chassis sections using the pin 1 fig 1 Lock the turntable 1 fig 2 Note If necessary corr...

Page 23: ...ents 3 4 5 6 7 2 9 8 12 10 1 11 1 Tool holder ram 2 Bucket ram 3 Dipper ram 4 Offset ram 5 Intermediate boom ram 6 Boom ram 7 Accelerator ram 8 Oscillation locking ram 9 Steering rams 10 Stabilizer ra...

Page 24: ...p oscillation locking valve 3 Transfer movement engine 4 Transfer movement pump 5 Stabilizers solenoid operated valve 6 Equipment pump 7 Orientation pump 8 Telescopic stabilizer selector 9 Road Site s...

Page 25: ...lock 2 Power assistance pressure solenoid operated valve 3 Priority valve 4 Orientation engine 5 CROSS OVER valve 6 Boom intermediate boom control unit 7 Braking block 8 Accumulator 9 Accumulator 10 A...

Page 26: ...Rotary coupling 2 Left manipulator 3 Additional functions foot control 4 Brake inching foot control 5 ORBITROL steering device 6 Accelerator foot control 7 Right manipulator 8 Parking brake control le...

Page 27: ...it T1 B PS G A A S T1 X B M1 A G T2 E F G P A T B P A T B 3 2 1 A2 A1 A3 A7 A7 A6 A5 B7 A4 A1 Hydraulic reservoir A2 Transfer movement engine A3 Oil cooler A4 Transfert movement pump A5 Non return val...

Page 28: ...7 A6 A4 B8 B9 B10 B11 A1 E6 A1 Hydraulic reservoir A4 Transfer movement pump A6 Sequence valve B1 Parking brake control B2 Brake foot control B3 Accelerator foot control B4 Parking brake ram B5 Front...

Page 29: ...EF CF LS T A 4 5 2 3 1 7 6 8 C5 C1 C8 C7 C4 C3 C2 C6 C9 C10 B6 B6 Rotary coupling C1 SX18 valve block C2 Left manipulator C3 Priority valve C4 ORBITROL steering device C5 Hydraulic turntable slewing m...

Page 30: ...6 C1 C2 C10 D2 B3 B2 B1 D4 D4 D3 B1 Parking brake control B2 Brake foot control B3 Accelerator foot control B6 Rotary coupling C1 SX18 valve block C2 Left manipulator C9 Drain block C10 Functions bloc...

Page 31: ...1 3 C B D 3B 12 T Z T Z A7 E1 A1 E7 E7 E5 E6 E3 E2 E8 A5 B6 E4 A1 Hydraulic reservoir A5 Non return valve A7 Gear change blocks B6 Rotary coupling E1 Left stabilizer ram E2 Left electric manipulator E...

Page 32: ...A M1 M2 B1 B2 P 1 T P C1 F1 C6 C9 D1 F6 F7 F5 F2 F3 F4 C2 C1 SX18 valve block C2 Left manipulator C6 Turntable rotation brake release block C9 Drain block D1 Right manipulator F1 Additional functions...

Page 33: ...30750 14MBX M1 31 9 7 Bucket circuit 2 4 T M a A B b A B T P C1 G2 D1 G1 C1 SX18 valve block D1 Right manipulator G1 Bucket ram G2 Solenoid operated bucket direction inversion valve LOADER function...

Page 34: ...control element H4 Intermediate boom control element H5 Boom control element H6 Equipment supply inlet element H7 Slewing control element H8 Slewing supply inlet element H9 Pressure limiter calibrati...

Page 35: ...30750 14MBX M1 33 9 9 Additional hydraulic equipment for fitting of the hammer return on the equipment option T M I1 C1 C1 SX18 valve block I1 Hose...

Page 36: ...14MBX 30750 34 M1 9 10 Tool holder circuit option A1 J2 C10 J1 C10 Functions block J1 Tool holder ram J2 Rotary coupling...

Page 37: ...uit option 2 1 3 P M1 T P X LS1 A LS LS 1 T P IN OUT K2 C1 K1 B6 K4 K5 K3 C10 B6 Rotary coupling C1 SX18 valve block C10 Functions block K1 Hydraulic motor K2 Solenoid operated valve K3 Pressure reduc...

Page 38: ...Z E1 L1 E8 A1 A5 B6 A7 E7 E7 L4 L2 E4 E2 L3 E3 E6 A1 Hydraulic reservoir A5 Non return valve A7 Gear change blocks B6 Rotary coupling E1 Left stabilizer ram E2 Left electric manipulator E3 Right stab...

Page 39: ...P M V2 T P M V2 T P M V2 b b b A T 3C F5 F3 C6 M2 M3 F4 M4 M1 C1 B6 B6 Rotary coupling C1 SX18 valve block C6 Turntable rotation brake release block F3 Dipper ram F4 Intermediate boom ram F5 Boom ram...

Page 40: ...T P M V2 b b b a A 3C T F4 N1 C1 C6 B6 F5 M4 F3 G1 M3 M2 M1 B6 Rotary coupling C1 SX18 valve block C6 Turntable rotation brake release block F3 Dipper ram F4 Intermediate boom ram F5 Boom ram G1 Bucke...

Page 41: ...30750 14MBX M1 39 9 15 VOLVO tool holder option A1 A B T P T M1 O2 C10 O3 O1 C10 Functions block O1 Tool holder ram O2 Solenoid operated tool holder valve O3 Nozzle non return valve...

Page 42: ...14MBX 30750 40 M1...

Page 43: ...nching valve 31 Return filter 32 350 g pressurised air valve 33 Oscillation locking ram 34 Left stabilizer ram 35 Stabilizer block 36 Rotary coupling 37 Hydraulic reservoir 38 Deviative block 6 ways 3...

Page 44: ...14MBX 30750 42 M1 H L MECALAC 1 MECALAC 2 3 4 2 1 MODE MODE MECALAC 1 MECALAC 2 2 L H R F P KM H N MIN D 8 7 7 9 4 3 1 2 19 18 6 5 10 11 12 13 15 14 16 17 17...

Page 45: ...d operated valves bundle 8 Left front headlight connection 9 Control table bundle 10 Selection bundle 11 Instrument panel bundle 12 Foot controls bundle 13 Foot controls electromagnet connection 14 Co...

Page 46: ...14MBX 30750 44 M1 VALVY DY PRIORITY RYXROTH Y2 Y1 Y9 Y7 Y6 Y4 Y3 Y5 Y8 Y10...

Page 47: ...g of rams solenoid operated valve Y4 MECALAC 2 option solenoid operated valve control unit Y5 Boom inter boom solenoid operated valve control unit Y6 Boom inter boom solenoid operated valve control un...

Page 48: ...14MBX 30750 46 M1 Y15 Y25 Y20 Y22 Y21 Y19 Y17 Y11 Y14 Y12 Y13 Y18...

Page 49: ...bilizer lowering solenoid operated valve Y15 Low speed solenoid operated valve Y17 Reverse solenoid operated valve Y18 Forward solenoid operated valve Y19 Inversion of direction of travel solenoid ope...

Page 50: ...48 M1 F14 F22 F20 F21 F19 F17 F16 F18 F15 F12 F5 F7 F8 F2 F9 F6 F4 F3 F11 F10 F23 F26 F24 F33 F32 F29 F28 F27 F31 F30 F1 F25 F13 FU1 FU2 FU3 K9 K12 K10 X100 K29 K28 K3 K2 K1 K5 K4 K22 K21 K20 K6 K14 K...

Page 51: ...7 5A fuse Main beams F21 3A fuse K5 relay unit and working light module F22 7 5A fuse Radio FU3 Fuse block F23 3A fuse Resetting and front windscreen wiper F24 25A fuse Lighting F25 5A fuse Starting r...

Page 52: ...tion light F39 3A fuse Rear left position light F40 3A fuse Number plate light F41 25A fuse Heating F42 40A fuse Turntable supply F44 3A fuse Engine shut off relay K15 Relay Engine shut off K17 Relay...

Page 53: ...A fuse Radio F23 3A fuse Resetting and front windscreen wiper F24 25A fuse Lighting F25 5A fuse Starting relay F27 5A fuse Position lights clearance lights and number plate lights F30 3A fuse Not used...

Page 54: ...P4 Fuel level indicator Q1 Battery cut out R Option for the Italy versions S1 Boom dipper control S2 Forward F and reverse R control in Loader mode S3 Slow speed S control in Loader mode S4 Audible wa...

Page 55: ...ime 1 Loosen the lock nut and turn the stop screw 1 fig 1 Note Number of teeth on engine wheel 159 14 Adjustment procedure 13 flat spanner 4 hexagonal male spanner Inductive sensor Operation Speed rpm...

Page 56: ...stop screw 1 fig 1 Note Number of teeth on engine wheel 159 Note For the air conditioning version of the machines minimum regime 1 050 50 0 1 13 flat spanner Flat screwdriver Inductive sensor Operati...

Page 57: ...ground speed in neutral engine in maximum regime 2 Measure the pressure 1 fig 1 using the manometer 3 If the pressure is too low turn the screw 1 fig 2 clockwise in order to increase the pressure Ope...

Page 58: ...low turn the screw 1 fig 2 clockwise in order to increase the speed of the engine Note For the air conditioning version of the machines starting point N 1 100 50 0 There must be a difference of at lea...

Page 59: ...manometer 3 If the pressure is too low turn the screw 1 fig 2 clockwise to increase the pressure Note The HP shock absorbers 1 fig 3 for forward and reverse movement are tared at 480 bars 40 0 bars 1...

Page 60: ...lacing an inductive sensor on the fan pulley 4 Measure the high pressure 1 fig 1 using the manometer 5 If the regime of the engine is too high turn the screw 1 fig 2 clockwise in order to reduce the n...

Page 61: ...flex 3 The pressure 1 fig 1 in the transfer movement engine rises slowly and then drops sharply 4 Turn the screw 1 fig 2 clockwise to slow down the sharp fall in pressure in the transfer movement engi...

Page 62: ...e 2 Read the speed in rpm by placing an optoelectronic sensor on the universal gear joint 3 Turn the screw 1 fig 1 anti clockwise to increase the number of rpm 19 flat spanner 6 male hexagonal spanner...

Page 63: ...the high pressure while the wheels are rotating 1 fig 1 using the manometer Note The pressure should not rise sharply when the wheels begin to rotate again 4 If the manometer reading indicates a sharp...

Page 64: ...n the cross over unit 3 Point the tower to the right in order to put the flex under pressure engine in maximum regime 4 Measure the pressure 2 fig 1 using the manometer 5 Loosen the lock nut and turn...

Page 65: ...t side Left side 4 Place the machine equipment in a blocked position and turn the direction to the left engine in maximum regime 5 Measure the difference in pressure between 1 fig 1 and 2 fig 1 using...

Page 66: ...r example the bucket ram 2 Measure the pressure on the assistance pressure accumulator 1 fig 1 using the manometer 3 Remove the stopper and turn the controller screw 1 fig 2 clockwise in order to incr...

Page 67: ...ontroller into its position Ref E536A0018 taring at 50 bars 3 With engine in maximum regime set the selector to MECALAC 1 and pull the left key towards the back blocked position to allow the oil to ci...

Page 68: ...ions 1 Remove the hoses from the valve block small chambers of the dipper ram and bucket ram 1 fig 1 and 2 fig 1 large chambers of the dipper ram and bucket ram 3 fig 1 and 4 fig 1 2 Fit the flow mete...

Page 69: ...2 fig 3 using the two manometers 5 Turn the screw 1 fig 4 clockwise in order to increase the P Note The flow meter kit shall remain installed for adjusting the power regulation 13 flat spanner 4 male...

Page 70: ...example the bucket ram Engine in maximum regime 3 Measure the pressure 1 fig 2 using the manometer 4 Loosen the lock nut and turn the pressure controller screw 1 fig 3 clockwise in order to increase t...

Page 71: ...fig 1 using the manometer 3 Loosen the L S controller 1 fig 2 previously over tared then adjust the pressure by turning the screw clockwise in order to increase the pressure 17 flat spanner 5 male he...

Page 72: ...low meter 1 fig 1 4 Measure the pressure 1 fig 2 using the manometer 5 Loosen the lock nut and turn the pressure controller screw 1 fig 3 clockwise to increase the pressure 6 Check that the regime of...

Page 73: ...left key towards the right blocked position 3 Screw the tap on the flow meter 1 fig 1 until the flow is cut off completely Note During this operation check that the regime of the engine does not exce...

Page 74: ...14MBX 30750 72 M1...

Page 75: ...ription adjustment values Speed Pressure Rpm bars Engine Max engine speed 2 300 20 20 Min engine speed 950 50 0 Direction Primary controller 250 5 0 P right 225 5 5 P left 225 5 5 Equipment Assistance...

Page 76: ...14MBX 30750 74 M1...

Page 77: ...2 3 4 5 6 7 8 11 10 1 Main box MT 4010 2 Male union 4DL8 7 16 unf20 3 Pressure sensor 4 20 mA 0 600 4 Pressure sensor 4 20 mA 0 60 5 Pressure limiter 50 bars taring calibration 6 Reduction mounting of...

Page 78: ...4 1 Flexible hose connection from the turbine to the SX18 valve block 2 Turbine flow meter 3 Connecting cable 4 Flexible hose connection from the turbine to the SX18 valve block Fig 3 TOP TEST MX too...

Page 79: ...30750 14MBX M1 77 1 5180102 2 5180103 3 5180104 4 6525004 5 6525003 6 572A0003 1 2 3 4 5 6 Fig 4 Special connector tools...

Page 80: ...14MBX 30750 78 M1 T13 T14 T15 T16B T16C T16A 1 5 2 3 T19 T21 T22 4 1 5450060 2 5450061 3 5450062 4 5450063 5 5450064 Fig 5 Axles tool DANA...

Page 81: ...30750 14MBX M1 79...

Page 82: ...GROUPE MECALAC MECALAC S A S Parc des Glaisins 2 av du Pr de Challes F 74940 Annecy le Vieux T l 33 0 4 50 64 01 63 Fax 33 0 4 50 64 02 79 www mecalac com...

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mecalac 14 MBX, Handbook Of Repair

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