53
Záva
d
y
Troubl
eshooti
ng
Problem
Possible causes
Repair
-
The brush position and the brush cover
is adjusted wrong – with the brush
cannot be turned.
The brush cover must be posed, in order to the
brush can be turned.
12.
The saw arm
periodically rise and
fall during the cut;
this cause short
lifetime of the saw
band.
-
Backslash in driving wheel lodgement
on the shaft.
Change the driving shaft for a long one, new
bearings, distance ring, new driving wheel,
spring, two covers on the forehead of the shaft +
screws.
-
Worn channel for spring.
5.2.
Electrical defects
Problem
Possible causes
Repair
1.
Machine is not
possible start.
-
In socket is not voltage
Line voltage must be checked.
-
Transfer relay is closed (thermal
protector)
Each FA relay must be checked.
-
Limit switch of saw band stretching,
cover of frame or cover of saw band is
not started.
Check of saw band stretching and covers
closing.
2.
When cut is finished,
the frame is not
raising.
-
Bottom limit switch is adjusted wrong.
Bottom limit switch must be adjusted according
to chapter ADJUSTING.
-
In hydraulic (pneumatic) ring is error.
HYTOS (BOSCH) is not acting to frame
uplift.
Function of magnetic valve must be checked,
valve must be closed, voltage of clamps and
inductor must be checked.
3.
Electric motor and
pump are without
voltage. Between
contactor and
thermal protector is
not voltage.
-
Wrong contactor.
Replace contactor of engine.
4.
The indicator of
speed saw band is
not functional.
-
Sensor of speed is not adjusted.
Sensor of speed must be adjusted.
-
Defective display
The display must be changed.
-
Wrong sensor – diode of indicator
speed is not light.
Sensor must be changed and adjusted.
5.
Protector is switched
off from engine
hydraulic aggregate
MA3 sometimes.
-
Into hydraulic system is high working
pressure.
Service engineer must reduce the pressure in
hydraulic system.
6.
The hydraulic
aggregate cannot be
started
Auxiliary contact on thermo-relay FA1
is defective.
Replace the defective contact on motor starter
FA1.
7.
Hydraulic aggregate
is switched on but
the saw arm or the
main vice is not
functional
-
Wrong connection of electrical supply.
The electrical phases are connected
conversely.
The phases must be switched. Only service
engineer can do this.
8.
Cooling is not active
Lack of cooling agent.
Fill the tank with cooling agent.
-
Thermal relay is defective
Change the thermal relay
-
Input hosepipe is broken or
obstructed.
Check the cooling circuit and perhaps cleanse
cooling system.
-
Cooling pump protection is defective
Check the protection of cooling pump if need
change it.
-
Cooling pump is defective.
Replace the cooling pump.
Summary of Contents for Practix Automatic 285.230 GA
Page 3: ...3 ...
Page 4: ...4 Manual version 1 00 May 2010 Manual rev 1 ...
Page 7: ...7 Bezpečnostní pokyny Sicherheitshinweise Safety notes 1 Safety notes ...
Page 29: ...29 Ovládání stroje Bedienung der Maschine Machine control 3 Machine control ...
Page 41: ...41 Údržba stroje Wartung Machine service 4 Machine service ...
Page 42: ...42 Manual version 1 00 May 2010 Manual rev 1 Údržba stroje Wartung Machine service ...
Page 48: ...48 Manual version 1 00 May 2010 Manual rev 1 Závady Troubleshooting ...
Page 49: ...49 Závady Troubleshooting 5 Troubleshooting ...
Page 50: ...50 Manual version 1 00 May 2010 Manual rev 1 Závady Troubleshooting ...
Page 54: ...54 Manual version 1 00 May 2010 Manual rev 1 Schémata Schemas Schematics ...
Page 55: ...55 Schémata Schemas Schematics 6 Schémata Schemas Schematics ...
Page 57: ...57 Schémata Schemas Schematics ...
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Page 98: ...98 Manual version 1 00 May 2010 Manual rev 1 ...
Page 100: ...100 Manual version 1 00 May 2010 Manual rev 1 7 1 Pila Säge Saw ...
Page 101: ...101 7 2 Kusovník Stückliste Piece list Pila Säge Saw ...
Page 102: ...102 Manual version 1 00 May 2010 Manual rev 1 7 3 Skluz Rutsch Glide ...
Page 103: ...103 7 4 Kusovník Stückliste Piece list Skluz Rutsch Glide ...
Page 104: ...104 Manual version 1 00 May 2010 Manual rev 1 7 5 Podstavec Säge Saw ...
Page 105: ...105 7 6 Kusovník Stückliste Piece list Podstavec Säge Saw ...
Page 106: ...106 Manual version 1 00 May 2010 Manual rev 1 7 7 Konzola Konsole Console ...
Page 107: ...107 7 8 Kusovník Stückliste Piece list Konzola Konsole Console ...
Page 109: ...109 7 10 Kusovník Stückliste Piece list Válec svěráku Schraubstockzylinder Vice cyl ...
Page 110: ...110 Manual version 1 00 May 2010 Manual rev 1 7 11 Svěrák Schraubstock Vice ...
Page 111: ...111 7 12 Kusovník Stückliste Piece list Svěrák Schraubstock Vice ...
Page 112: ...112 Manual version 1 00 May 2010 Manual rev 1 7 13 Rameno Sägerahmen Saw arm ...
Page 113: ...113 7 14 Kusovník Stückliste Piece list Rameno Sägerahmen Saw arm ...
Page 114: ...114 Manual version 1 00 May 2010 Manual rev 1 7 15 Rameno Sägerahmen Saw arm ...
Page 115: ...115 7 16 Kusovník Stückliste Piece list Rameno Sägerahmen Saw arm ...
Page 116: ...116 Manual version 1 00 May 2010 Manual rev 1 7 17 Napínání Spannung Tension ...
Page 117: ...117 7 18 Kusovník Stückliste Piece list Napínání Spannung Tension ...
Page 118: ...118 Manual version 1 00 May 2010 Manual rev 1 7 19 Podavač Vorschub Feeder ...
Page 119: ...119 7 20 Kusovník Stückliste Piece list Podavač Vorschub Feeder ...
Page 120: ...120 Manual version 1 00 May 2010 Manual rev 1 7 21 Podavač Vorschub Feeder ...
Page 121: ...121 7 22 Kusovník Stückliste Piece list Podavač Vorschub Feeder 2 ...
Page 122: ...122 Manual version 1 00 May 2010 Manual rev 1 7 23 Váleček Rolle Roller ...
Page 123: ...123 7 24 Kusovník Stückliste Piece list Váleček Rolle Roller ...
Page 124: ...124 Manual version 1 00 May 2010 Manual rev 1 7 25 Váleček Rolle Roller 2 ...
Page 125: ...125 7 26 Kusovník Stückliste Piece list Váleček Rolle Roller 2 ...
Page 126: ...126 Manual version 1 00 May 2010 Manual rev 1 7 27 Váleček vertikální Rolle vert Vert Roller ...
Page 127: ...127 7 28 Kusovník Stückliste Piece list Váleček vertikální Rolle vert Vert Roller ...