Grizzly 50/65 Ton Ironworker G0646 - Manual (Page 46)

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G0646/G0647 50/65 Ton Ironworker
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine has vibra-
tion or noisy opera-
tion. 1. Motor wired out of phase.
2. Motor or component is loose.
3. Motor mount loose/broken.
4. Machine is incorrectly mounted or sits
unevenly.
5. Motor fan is rubbing on fan cover.
6. Motor bearings are at fault.
1. Swap any to incoming power wires at the motor
( Page 56).
2. Inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
3. Tighten/replace.
4. Tighten/replace anchor studs in floor; relocate/shim
machine.
5. Replace dented fan cover; replace loose/damaged
fan.
6. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Operations
Symptom Possible Cause Possible Solution
Cuts are excessively
ragged or not accu-
rate. 1. Tooling damaged or dull.
2. Not using proper station.
3. Tooling not installed properly.
4. Cutting stroke not continuous through the
workpiece.
5. Workpiece moves away from tooling during
operation.
1. Check/sharpen/replace tooling.
2. Use the appropriate ironworker station for your
operation
3. Check/repair tooling installation and clearances.
4. Keep the Normal/Inch switch in
Normal position and
pressure on pedal actuator until workpiece is cut
completely through.
5. Use hold-downs, table guides, and other devices to
ensure workpiece is secure before cutting.
Tooling not cutting
completely through
workpiece. 1. Workpiece dimensions not within capacity
of machine.
2. Tooling is damaged or dull.
3. Hydraulic pump at fault.
4. Hydraulic system has leaks or valves at
fault.
1. Make sure workpiece dimensions are within machine/
station capacity; use cutting lubricant.
2. Check/sharpen/replace tooling.
3. Test/adjust correct hydraulic fluid pressure (
Page
50); replace pump if necessary.
4. Check/repair/replace hydraulic hoses, connections,
and valves.
Loud unusual noise
when beam revers-
es direction. 1. Limit stops not properly set. 1. Set limit rings and stops to factory settings ( Page
50).
Hydraulic fluid tem-
perature
at/over
160°F (70°C).
1. Machine cutting at/beyond capacity.
2. Hydraulic fluid pressure set to high.
3. Incorrect hydraulic fluid type.
4. Hydraulic system at fault.
1. Turn machine OFF and allow hydraulic fluid to cool;
make cuts only with the capacity of your machine.
2. Reduce hyrdaulic fluid relief pressure to 3000 PSI
( Page 50).
3. Use only one of recommended hydraulic fluids from
Figure 54 on Page 40.
4. Have a qualified hydraulic service technician ser-
vice/repair the hydraulic system.