Graco GrindLazer 25P474, Operation - Repair - Parts

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Troubleshooting
3A7600C 31
Drive belt wearing prematurely
Pulley is misaligned Re-align pulley
Wrong belt Order new belt
Machine will not move in forward
or reverse
Hydraulic fluid level may be low Ensure hydraulic fluid level reservoir is filled
to the proper level
V-belt to hydraulic pump is slipping or dam-
aged Check V-belt, replace if damaged
Lifting carriage too low / drive wheels not on
work surface Check lifting carriage is in upright position
and drive wheels are in contact with work
surface
DCS Control not turning on Blown fuse on DCS Power wire. Replace fuse on DCS Power wire.
Power Switch is OFF or damaged. Turn Power Switch ON. Replace Power
Switch if danged.
Battery is dead. Charge Battery.
DCS Control Board is damaged. Replace DCS Control Board.
DCS Control runs for short time,
then turns off Engine is not charging the battery. Battery
voltage is 14.0-15.0 VDC when engine is
full throttle and charging correctly. Check engine charging coil, voltage recti-
fier/regulator and fuse inside engine ignition
box. Replace or repair if needed.
DCS Control is on, but actuator
and/or drum housing does not
move Actuator is disconnected from DCS Control. Check all connections.
A DCS Control Switch is pressed or defec-
tive. Ensure all switches are not stuck. Replace
switches if defective.
Actuator rod is stuck. Manually move the actuator rod using the
Manual Height Adjustment feature. Remove
screw plug on top of the actuator, then use
6mm hex key to move the rod.
Actuator or DCS Control Board is damaged. See flow chart, page 33.
Battery is low. Charge battery.
DCS display does not match Cut
Depth. DCS Control needs to recalibrate its posi-
tion. Restart the DCS Control.
Zero Position is not set to the work surface. Reprogram the Zero Position. See DCS
Instructions , page 19.
The wrong GrindLazer model is selected on
the DCS Control. Select the correct model on DCS Control.
See
Menu Screens , page 15.
DCS Control Buttons work, but
display is blank The display is unplugged or damaged. Check that the display ribbon cable and
red/white wire are connected inside Control
Box. Replace if damaged.
Problem Cause Solution