Hyster A1.00XL, Service & Repair Manual

Page 1: ...Hyster C203 A1 00XL A1 25XL A1 50XL Europe...

Page 2: ...eater the concentration of the lines When two magnets are placed so that the north pole of one and the south pole of the other are close together they attract each other If the magnets are placed with...

Page 3: ...all of the lines around the conductor must pass through the inside of the loop The lines on the outside spread out but the lines on the inside of the loop are confined and increase the density This c...

Page 4: ...y winding will induce a voltage in the secondary because both windings are linked together magnetically The ignition coil and SCR pulse transformer operate on this principle EXPANDING MAGNETIC FIELD G...

Page 5: ...lso flows through the field windings creating a powerful magnetic field In FIGURE 6 current from the battery flows first around the right hand field coil and then crosses over to flow around the left...

Page 6: ...ore information Please click here Then get the complete manual NOTE If there is no response to click on the link above please download the PDF document first and then click on it Have any questions pl...

Page 7: ...tion NOTE Some 78 80V motors require interpole windings which reduce arcing at the neutral point The interpole windings provide this feature by reducing the magnetic field across the armature conducto...

Page 8: ...then the effective voltage acting on the armatureis the difference between the terminal voltage and the counter emf 2 volts The armature current is then only 200 amps TYPICAL MOTOR Typical motors basi...

Page 9: ...der conditions of light load there is high speed and low torque Under conditions of heavy load there is low speed and high torque Series motors are de sirable in some hydraulic systems where a light l...

Page 10: ...ries and shunt windings The field consists of two separate sets of windings One set whose coils are wound with a few turns of heavv wire is connected in series with the armature as a series field The...

Page 11: ...hanges in temperature or humidity The brushes should be lifted off the commutator during extended storage periods otherwise corrosion may occur and later result in flat spots on the commutator HANDLIN...

Page 12: ...ean dry compressed air less than 3 52 kg cm2 50 psi blow dust from motor housing brush holders and commutator area Disassembled Motor Interior The interior should preferably be cleaned by suction firs...

Page 13: ...mounting device Electric power from the battery to the commutator segments travels through the brushes The mounting device must be insulated from the electrical circuit Before installing brushes alwa...

Page 14: ...s are energized changing the polarity of the armature coils in rotating sequence May vary among motor manufacturers 1 2 3 4 FIGURE 16 ARMATURE ASSEMBLY 1 LAMINATED IRON CORES 2 COMMUTATOR 3 ARMATURE C...

Page 15: ...film It is important to maintain this film Temperature atmosphere and the grade of brush used all affect this film If the film is damaged electrically or mechanically both brush and commutator wear ar...

Page 16: ...ptable condition if the commutator surface is smooth 6939 STREAKING AND THREADING SURFACE Streaking on the commutator surface signals the beginning of serious metal transfer to the carbon brush which...

Page 17: ...ator must not be confused with threading Grooving is a smooth slotted wear of the commutator and is generally the result of abrasive dust in the atmosphere The abrasive dust contamination between slid...

Page 18: ...t between the commutator bars This condition will cause a short circuit between the commutator bars if it is not corrected The brushes will wear rapidly Possible Causes Operation of the motor in dirty...

Page 19: ...lots This decreases the distance between the bars An arc formed at any bar can then be more easily carried over to an adjacent bar resulting in a flashover A temporary solution of copper drag is to cl...

Page 20: ...d Expansion will cause these bars to rise above the adjacent bars When the armature rotates the high bars kick the brushes which in turn arc and burn the commutator surface If this condition is not co...