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General 90-725, Руководство пользователя, Страница: 17 / 18

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General 90-725 Скачать руководство пользователя страница 17

21

21

MOTOR OVERHEATING

Blade tension too high

Reduce blade tension

Motor belt tension too high

Reduce belt tension

Blade is too coarse for work

Use finer blade

Blade is too thin to work

Use thicker blade

improperly aligned gears

Adjust gears so that worm is in cen-

ter of gear

Binding blade

Reduce feed pressure

Gears need lubrication

Check oil level

BAD CUT (CROOKED)

Feed pressure too high

Reduce feed pressure

Guide bearings not adjusted

Adjust guide bearings

Inadequate blade tension

Tension the blade

Dull blade

Replace the blade

Speed incorrect

Adjust speed

Blade guide too far from blade

Adjust guide spacing

Blade guide loosens

Re-tighten lock knobs

Blade tracks too far from wheel 

shoulder

Adjust blade tracking

BAD CUT (ROUGH)

Blade or feed speed too high

Reduce blade or speed feed

Blade is too thick

Replace with thinner blade

Blade tension insufficient

Tension the blade

Binding blade

Reduce feed pressure

Blade tension too high

Reduce blade tension

SYMPTOM

POSSIBLE CAUSE

CORRECTIVE ACTION

EXCESSIVE BLADE BREAKAGE

Workpiece loose in vise

Tighten the vise

Incorrect feed speed

Adjust feed speed

Blade teeth space too large

Replace the blade

Material too coarse

Use a blade of slow speed and 

small teeth spacing

Incorrect blade tension

Tension the blade

Teeth in contact with workpiece be-

fore saw is turned on

Place the blade in contact with 

blade after turning on the machine

Blade rubs on wheel flange

Adjust wheel aliignment

Misaligned guide bearing

Adjust guide bearing

Blade too thick

Use thinner blade

Blade cracking at weld

Weld again

TROUBLE SHOOTING

MAKE SURE THE MACHINE HAS BEEN TURNED OFF AND UNPLUGGED FROM THE POWER SOURCE BEFORE PERFORM-
ING ANY MAINTENANCE OR ADJUSTMENTS.

Содержание 90-725

Страница 1: ...t the blade has gained full operating speed before starting to cut 14 Always use a clean properly sharpened blade Dirty or dull blades are unsafe and can lead to accidents 15 Use suitable workpiece su...

Страница 2: ...occurs contact a qualified technician or our service department CONVERTING THE MOTOR TO 240V Note When converting motor voltage on a machine that is equipped with a magnetic switch the switch contact...

Страница 3: ...WITCH F COOLANT PUMP SWITCH G WHEELS 4 H BLADE I GEAR BOX J MOTOR K WORKPIECE STOP L COOLANT RECOVERY TRAY M STAND N CYLINDER O BLADE GUIDES 2 P RECOVERY TRAY FILTER Q CYLINDER VALVE R BLADE TENSION I...

Страница 4: ...the unit features an automatic hydrauli cally controlled down feed with auto shutoff at the end of the cutting cycle The coolant system with built in pump is designed to supply a continuous ow of liq...

Страница 5: ...r placement within your shop that will allow the operator to work unencumbered and unobstructed by foot traf c either passing shop visitors or other shop workers or other tools or machinery ESTABLISHI...

Страница 6: ...e the workpiece stop onto the bar as shown G and tighten the thumbscrew H to secure it in place INSTALLING THE TABLE FOR VERTICAL CUTTING 1 To lock the blade arm in the UP position shut off the hydrau...

Страница 7: ...utton twist lock out device C Once this button has been pressed the machine can only be started by turning the button to the right to release the stop button C The limit switch E on the end of the sta...

Страница 8: ...nd refer to the chart in the electrical requirements section at the beginning of this manual 3 Overworked circuit caused by operating on a circuit that is close to its amperage draw capacity Make sure...

Страница 9: ...nto the vertical position Loosen the lock knob A and then push the guard down as shown Remove the two lock knobs B and open the blade cover 2 Loosen the blade by turning the tensioning handle counterc...

Страница 10: ...kwise to loosen The white mark B shoud be cen tered in the shaded zone C of the ten sion indicator 3 Make a test cut on a sample piece and if needed re adjust the blade tension Note To check the blade...

Страница 11: ...is not square to the table go to step 2 2 Loosen screw D with a 6 mm Allen key and make sure that the blade is parallel with the square by turning the blade support E Retighten screw D once nished ad...

Страница 12: ...rom side to side during the cutting and must be adjusted close to the blade but not touching the blade in order to ensure accurate cuts The space between each guide bearing and the blade must not exce...

Страница 13: ...would not otherwise be supported from slipping out of po sition during cutting and to reduce risks of injuries a minimum amount of blade should be exposed For a straight cut and to reduce the risk of...

Страница 14: ...and tighten bolt C a few turns 2 Repeat as needed until the desired tension is achieved and then retighten the jam nut B Note For less tension loosen bolt C SPEED SELECTION CHART BLADE SPEEDS BELT SP...

Страница 15: ...ecommended parts and accessories The use of parts or accessories NOT recommended by GENERAL INTERNATIONAL may result in a risk of injury or damage to the machine 6 Be sure that adjusting wrenches tool...

Страница 16: ...for any other unsafe conditions Clean the metal blade brush Monthly Inspect V belt tension damage or wear Clean the vise screw with compressed air and lubri cate as shown with an all purpose oil 1 Low...

Страница 17: ...speed too high Reduce blade or speed feed Blade is too thick Replace with thinner blade Blade tension insuf cient Tension the blade Binding blade Reduce feed pressure Blade tension too high Reduce bla...

Страница 18: ...rial Increase feed pressure by tighten ing the cylinder lock knob Blade twists Replace the blade and adjust its tension Insuf cient blade tension Tension the blade Blade slides Tension the blade BLADE...

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