Motor & Guard Assembly - DeWalt DW708 Repair Manual

DW708 MITRE SAW - STRIDOWN PROCEDURE
The machine consists of two main assemblies, the motor and guard (Head Assy.)
and the rotary table and base (Table Assy.). These elements are connected by
means of a bevel housing, that also supports the crosscut pull bars.
The procedure that follows is intended only as a guide, and the product can be
repaired or taken apart in a different sequence if required. Before commencing any
stripdown or repair work you should refer to the use Instruction manual to familiarise
yourself with the major components of the product. You should read and pay
particular attention to the safety Instructions in the manual.
The Instruction manual also contains useful advise on the setting up procedure to
ensure accuracy of cut following any repair work.
Make sure the tool is unplugged before commencing any repairs or
adjustment.
MOTOR & GUARD ASSEMBLY.
Before starting remove the blade (if fitted) as follows :
Press down on the handle (101) and pull out the head lock pin (118) to allow the
head assy. to come up into the normal cutting position when you depress the guard
lock lever (180).
This will now allow you to access the blade cover plate screw (10).
Loosen the screw and swing the plate up so that you can see the blade bolt (12).
Undo the left hand threaded blade bolt, remove the outer clamp washer (77) and
take off the blade. You can now remove the inner clamp (79).
Before removing the motor from the body of the machine you must free up the motor
cable.
Take off the cable cover plate (97) by removing the screws (26).
Now lock the head assy. back down in the transit position to make it easier to work
on.
Remove the switch handle cover screws (30,11) and lift off the cover. You can now
remove the handle to casting fixing screw (9), the handle can now be moved free
from the casting, and also allow the cable to be moved as required.
At this point you can also access the switch, leads, and capacitor. Before
disconnecting any of the leads make a note of the connections (also refer to the
wiring diagram attached). Note also that the leads are retained and routed in the
handle by plastic fins to prevent them being trapped upon reassembly.
Now take off the belt cover (104) by removing the screw (7) and remove the belt by
pulling, and at the same time feeding it off the pulley.
The motor is detached from the arm casting (102) by first removing the six fixing
screws (8).
Take off the motor, which can now be worked on further as required.
To remove the armature and field take out the four screws (1) that fix the fieldcase
to the bearing housing (94), and take the motor apart.
The armature pulley (69) is fixed to the armature with two keys (74), a screw (4),
lockwasher (39), and a flat washer (38). The pulley position on the armature is
maintained by a circlip (44).
When taking the motor apart take care not to lose the dust seals (103).
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