DeWalt DWE4120N Mounting and Using Cutting Type 1 Wheels, Mounting Closed Type 1 Guard

FIG. 19

R

English

2.	Apply minimum pressure to work surface,	FIG. 15
	allowing the tool to operate at high
	speed. Material removal rate is greatest
	when the tool operates at high speed.
3.	Maintain a 5˚ to 10˚ angle between	5˚–10˚
	the tool and work surface for wire cup

brushes.

4.Maintain contact between the edge of the wheel and the work surface with wire wheels.

5. Continuously move the tool in a forward and FIG. 16

back motion to avoid creating gouges in the work surface. Allowing the tool to rest on the work surface without moving, or moving the tool in a circular motion causes burning and

swirling marks on the work surface.

6.Remove the tool from the work surface before turning the tool off. Allow the tool to stop rotating before setting it down.

CAUTION: Use extra care when working over an edge, as a sudden sharp movement of grinder may be experienced.

Mounting and Using Cutting

(Type 1) Wheels

Cutting wheels include diamond wheels and abrasive discs. Abrasive cutting wheels for metal and concrete use are available. Diamond blades for concrete cutting can also be used.

WARNING: A closed, 2-sided cutting wheel guard is not included with this tool but is required when using cutting wheels. Failure to use proper flange and guard can result in injury resulting from wheel breakage and wheel contact. See page 55 for more information.

56

MOUNTING CLOSED (TYPE 1) GUARD (FIG. 17 –19)

WARNING: If present, the ONE TOUCH™ guard screw, lever and spring must be removed before attempting to mount the closed (Type 1) guard. The removed parts must be retained and reinstalled to use the ONE TOUCH™ guard. Noting the position of these parts

before disassembly will aid in reassembly.
1.	Open the guard latch (Q). Align the	FIG. 17
	lugs (L) on the guard with the slots		M
	(M) on the gear case.
2.	Push the guard down until the guard
	lug engages and rotates freely in
	the groove on the gear case hub.
3.	Rotate guard (F) into desired
	working position. The guard body	L
	should be positioned between the
	spindle and the operator to provide		Q
	maximum operator protection.

4.Close the guard latch to secure the FIG. 18 guard on the gear case cover. You should be unable to rotate the guard by

hand when the latch is in closed
position. If rotation is possible, tighten
the adjusting screw (R) with clamp lever	F
in the closed position. Do not operate
grinder with a loose guard or clamp
lever in open position.

5.To remove the guard, open the guard latch, rotate the guard so that the arrows are aligned and pull up on the guard.

NOTE: If, after a period of time the closed (Type 1) guard becomes loose, tighten the adjusting screw (R) with the clamp lever in the closed position.