Hyd-Mech V18APC - Trouble Shooting Guide

3.8
ELECTRICAL TROUBLESHOOTING
PROBLEMS CAUSE SOLUTION
1 Saw will not start at all. 1a. Motor overload has tripped. 1a.
Depress Blade Motor Overload Reset
Button.
1b. Control circuit has blown. 1b.
Replace Fuse with 8 AMP 250V AG type.
Repeated Fuse Blow-outs indicate an
internal wiring fault.
1d. Safety interlock switch not closed. 1d.
Check that all switches are closed and
operating properly.
2
Saw will start, but no
hydraulic functions
respond
2a.
Check system pressure gauge. Wrong
phase order if no pressure.
2a.
Stop immediately. Reverse any two of
three phase connections.
2b.
If pumps runs noisily then checkthe
hydraulic oil level at gauge.
2b.
Stop immediately and add hydraulic oil until
the correct level is present.
2c.
Check the pump/motor coupling for
separation.
2c.
Stop immediately and check for the
adjustment required.
3
Functions will not
respond to manual
controls.
3a.
Check pilots of valves. If pilot fails to
light, then check electrical system.
3a-b.
The solution to this problem is handled best
by a qualied technician.
3b.
If pilot lights but output fails the coil
may be bad. Check dirt in valve
spool.
4
An operator control will
not respond.
4
The switch or pushbutton contact
assembly is defective.
4
Replace the component that is inoperative.
Test voltage levels at switch.
5
Hydraulics run but blade
will not start.
5a. Check for red fault light at VFD. 5a.
Interrupt main supply to machine for two to
three minutes.
5b. Red fault light on VFD is not on. 5b. Check blade motor line fuses.
CUTTING AND BLADE TROUBLESHOOTING
1
Saw is cutting out of
square.
1a. Blade is worn. 1a.
Change the blade and check alignment with
new blade.
1b. Blade guide is worn or not adjusted. 1b.
Replace the worn guide or adjust the guide
until the blade is cutting square.
TROUBLE SHOOTING GUIDE
Most problems which may occur have one of the relatively simple solutions which appear in this section. If the solution is
not found here, contact the Hyd·Mech Distributor from whom you purchased your bandsaw. They have trained eld ser-
vice personnel who will be able to rectify the problem.
NOTES:
1. IF THE BLADE IS RUNNING COUNTER CLOCKWISE OR THE HYDRAULIC PUMP IS NOISY SHUT THE SAW
DOWN IMMEDIATELY!
2. If the drive motor is to be replaced, it must be replaced with a non-vented motor to prevent coolant leaking into the
motor.