Hyd-Mech H28A-120, Руководство по обслуживанию и запасным частям

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3.2
BLADE CHANGE MODE PROCEDURE
Wear safety glasses, gloves, and a long sleeve shirt for protection when handling band saw blades during blade change.
NOTE THAT GLOVES SHOULD NEVER BE WORN NEAR A RUNNING BANDSAW BLADE. When handling new blades,
or ones that will be re-used, it is important to keep the teeth out of contact with concrete floors.
This machine is equipped with hydraulic blade tension and a ‘Blade Change Mode’ key switch, located on the operator
control panel.
This key has two positions:
OFF – All normal operations of the band saw are operative.
ON – Hydraulic motor can be started.
Blade tension and head control is operative.
BLADE REMOVAL
1. With the blade change mode key switch in ‘OFF’, the blade stopped and the hydraulics ON, raise the saw head
until the drive door will clear the electrical control panel.
2. Open the front vise about 12”. This will provide room between the two guide arms to easily grasp the blade with
two hands, BUT DO NOT TOUCH THE BLADE UNTIL THE BLADE CHANGE MODE SWITCH IS TURNED TO
THE ‘ON’ POSITION.
3. Turn the blade change key switch to the ‘ON’ position. The hydraulics will continue to run, but only the blade
tension switch is functional. The blade wheel doors can be opened without the hydraulics shutting down.
4. Remove the blade guard.
5. Open both blade wheel doors.
6. Release the blade tension by turning the switch briefly to ‘ – ‘. By jogging the switch between ‘HOLD’ and ‘ – ‘, it is
possible to regulate the degree of tension on the blade.
7. Pull the top strand of the blade down out of its slot above the cutting area and forward out of the slots on the
inside walls of the blade wheel housings.
8. Pull the lower strand of the blade down out of the blade guides.
9. Store and dispose of the used blade.