DeWalt DW720, Manual

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E N G L I S H
29 en - 8
Disc sanding (fig. N1)
• Always use the downward (right-hand side) of the disc.
• When using the disc sander (94) for horizontal sanding, the shaping
head guard (89) (fig. N2) should be mounted and adjusted so that the
sanding disc is just clear of the underside of the guard.
Drum sanding (fig. N2)
• When drum sanding, always feed your material against the rotation of
the drum sander.
The router bracket (fig. E1, O1 - O3)
The router bracket (96) allows you to attach a Elu router (MOF96, MOF131,
MOF177 or OF97) to your machine, thus extending its versatility to
accurate, decorative woodworking (fig. O1).
Mounting the router bracket
• Remove the blade guard assembly and the blade.
• Position the router bracket (96) over the end of the arbor as shown in
figure O1 and secure it with the wing nut (59).
• Replace the guide rods of the parallel fence of your router by the
support bars (97) supplied with the attachment:
- Use the small diameter bars for MOF96 (fig. O2)
- Use the large diameter bars for MOF131/MOF177/OF97 (fig. O3).
• Tighten the locking screws (98).
Always make sure your router is properly centred on the bars
and secured in the bracket.
Routing (fig. A1 & E1)
The router can be set to the required angle and pulled across the workpiece
using the handle (2) in figure A1 or guided along the stationary cutter.
• Check that the router bracket is mounted rigidly.
• If required, fit the outer flange (42) in figure E1 on the arbor and clamp
the router bracket against the motor using the arbor nut (39) in figure E1.
Do not overtighten the arbor nut.
Always feed the workpiece against the rotating cutter.
Also refer to the instruction manual of your Power Tool.
Drilling/boring (fig. P)
The threaded location hole (99) accepts the optional 10 mm or 3/8" drill
chuck which turns your saw into a versatile radial drilling unit. This option
is particularly useful for preparing material for dowels.
• Remove the blade guard assembly and the blade.
• Pivot away the cover (100).
• Fit the drill chuck (101) directly into the threaded location hole (99).
Mitre fences (fig. Q1 & Q2)
Mitre fences (102) are available to extend and speed up the angle cutting
facility (fig. Q1).
• Replace the standard fence by the mitre fences (102).
• Guide the saw blade between the two fence sections (fig. Q2).
Sabre sawing (fig. R1 - R3)
Mounting the sabre saw
By mounting the sabre saw attachment (103) in the motor arbor,
your machine can be turned into a radial sabre or jigsawing machine (fig. R3).
• Remove the blade guard assembly and the blade.
• Mount the plastic rear spacer (104) onto the motor arbor with the
retaining lug (105) over the guard retaining screw and the flat front
surface slotted behind the guard retaining lugs (106) (fig. R1).
• Place the special spacer (107) onto the spindle.
• Loosen the two wing nuts (108) in the front of the sabre saw to allow
the two angled retaining struts (109) to protrude from the rear (fig. R2).
• Place the sabre saw onto the motor arbor and locate the two location
pins into the holes (110) provided in the spacer (fig. R1).
• Push the top right-hand retaining strut (109) through the hole in the
spacer (111) and turn to locate the flat angle piece behind the lug (112).
• Locate the lower one in the same way and tighten the wing nuts.
• Place the standard arbor nut onto the spindle and tighten it.
Recheck the tightness of the wing nuts.
• Fit the saw blade (113) onto the slot in the bottom of the shaft with the
teeth towards the operator. The shaft has a small grub screw (114) in
either side for clamping and centralizing the blade (fig. R3).
Using the sabre saw (fig. R3)
Positioning of the sabre saw depends on the requirements of the job.
There is a small hole (115) in the fixed table to allow the blade to pass through
the table, or in some cases the position could be as with the drum sander.
• Remove the table fence and substitute it with wooden spacers (20 mm)
and then position the blade (teeth forwards) just behind the front fixed
table.
• Before starting to saw, ensure the sawfoot is lowered to prevent any
tendency for the material to lift.
Traverse control (fig. A1, J, S1 - S3)
The traverse control (116) guarantees optimum results in applications
where a consistent, even feed rate is important.
Mounting the traverse control
• Remove the return spring (82) in figure J.
• Remove the yoke travel stop (14) in figure A1.
• Mount the rear flat bracket (117) and the yoke travel stop as shown in
figure S2.
• Loosen the grub screw (118) in the knurled knob (119) using an
Allen key and unscrew the knurled knob (fig. S3).
• Loosen the grub screw (120) in the rear support (121) and pull the
support off the rod.
• Pass the cylinder (122) through the cylinder clamp (123) (fig. S1).
• Position the cylinder clamp (123) over the riplock (15) and tighten the
grub screws in each side of the mounting (124).
• Reassemble the rear support (121) and the knurled knob (119) and
tighten all screws (fig. S3).
• Position the rear support (121) as shown (fig. S3) and tighten the grub
screw (120).
• Push the roller head to the rear and position the cylinder in its clamp (123)
as far to the rear as possible. The end of the rod should not touch the
bleed bolt in the rubber bellows, when the bellows (125) are
compressed. Check the position by pressing the bleed bolt.
• Tighten the screw (126) in the cylinder clamp.
• Set the traverse speed using the knurled knob (119).
Bleeding the traverse control
After refilling or replacing the oil in the traverse control, the air must be
expelled from the system.
• Remove the unit from the machine and with the piston fully extended
and turned downwards, clamp the unit in a vertical position.
• Remove the plug at the rear end of the bellows (125). Hold the bellows
to avoid spilling the oil.
• Refill the bellows completely with hydraulic oil Castrol 210 NRL25 or
equivalent using a funnel or an oil syringe.
• Replace the filler plug and tighten it one turn.
• Slightly press the bellows until some oil escapes from the filler plug.
• Tighten the filler plug with a wrench and reinstall the unit.