Maintenance; Carbide Block Removal And Installation - Grizzly 350 000 Operator's Instruction Manual

Roof planer

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Follow this procedure: while engine is running at low speed and with the planer in it's idle position, move depth control lever

from it's idle position to the working position slowly. If you engage the surface, immediately put the machine back in the

idle position and turn the depth control lever counter-clockwise to raise the disc. Try this procedure again until the machine

is in it's working position without engaging the surface. Now set throttle to 2/3 to 3/4 of full speed and turn depth control

lever clockwise to slowly engage roof to desired depth setting. Adjust it just low enough to do a clean job, no lower.

Periodic adjustments may be necessary as the blocks wear. Operator must observe quality of planning job and make

adjustments accordingly.

When planning, don't push the machine faster than it is capable of working. Walk forward only, pushing the machine at a

pace at which it does a clean job. At the end of the row, turn the machine without tilting it.

WARNING;

NEVER TILT MACHINE TO EXPOSE DISC WHILE OPERATING. SEVERE PERSONAL

INJURY COULD OTHERWISE RESULT TO OPERATOR OR OTHERS ON THE JOB

SITE. SHUT MACHINE OFF WHEN NOT ATTENDED BY OPERATOR.

MAINTENANCE

CAUTION; Disconnect spark plug wire before working on machine.

There are four carbide blocks installed on the planning disc. The blocks are each held in place by an allen screw. Eventually

the blocks will become worn and replacement will be necessary. When the carbide has worn from the blocks, it is time to

replace with new blocks. Make certain you disconnect spark plug wire before working on machine.

To remove the blocks, use a long arm allen wrench. The blocks do not drop off the disc after screws have been turned out,

you may need to tap them out with a block of wood. It is best to replace screws at the same time you replace the blocks.

When installing new blocks, countersink side of block faces out. Use care to align screw properly and turn evenly; damage to

threads could otherwise result. Make certain the blocks are tightened securely. See Fig. 7, illustration of blocks installed on

the planning disc.

Fig. 7 Carbide blocks on disc planer

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