Assembly And Adjustments; Installing And Removing Blades - DeWalt DCS378 Instruction Manual

Heavy‑duty 20v max cordless band saw
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ASSEMBLY AND ADJUSTMENTS


WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.

Installing and Removing Blades


CAUTION: Cut hazard. Blade tension lever is under
spring pressure. Maintain control of lever when
releasing blade tension.

WARNING: ALWAYS wear gloves when touching the
saw blade.
To Install Blade (Fig. A, D–G)
1. Rotate the blade tension lever 
until it stops to release tension on blade (refer to
Figure A).
2. Turn the saw over and place it on a workbench or table.
3. Unlatch the two blade guard latches 
blade guard.
4. Position the blade so that the teeth face out from the
saw and cut towards the work stop 
blade direction
5. Slip blade into the guide rollers 
pulleys 
 19 
as shown in Figure D.
6. Make sure that the blade is fully inserted into the guide
rollers and positioned fully on the rubber tires 
just touching the rear guide bearings 
7. Rotate the blade tension lever 
until it stops and then close blade guard
latches. Make sure the teeth face away from the band
saw (as shown in the Figure in Step 4).
8. Turn the saw on and off a few times to ensure that the
blade is seated properly.
Work Stop Adjustment (Fig. G)
To support large workpieces, the work stop should be
lowered following these steps:
1. Loosen the two screws 
wrench 
 5 
provided.
2. Move the work stop 
 6 
3. Securely tighten screws 
To Remove Blade (Fig. A, D–H)
1. Rotate the blade tension lever 
until it stops to release tension in blade (refer to
Figure A).
2. Turn the saw over and place it on a workbench or table.
3. Unlatch the two blade guard latches
blade guard
11
.
10
 8 
clockwise 180 degrees
 12 
and open the
.
 6 
6
 20 
and around both
 21 
 25 
.
 8 
counterclockwise
11
and secure
, shown in Figure G, with the hex
 26 
to the desired position.
.
 26 
 8 
clockwise 180 degrees
12
and open the
4. When removing the blade, tension may be released and
the blade may spring free. SAW BLADES ARE SHARP. USE
CARE IN HANDLING THEM.
5. Inspect the guide rollers 
which may be lodged in them. Lodged chips can prevent
rotation of the guide rollers and cause flat spots on the
guide rollers.
6. Rubber tires 
rubber tires should be inspected for looseness or damage
when changing the blade. Wipe any chips from the
rubber tires on the pulleys with a brush.
nOTE: Do not use your hands to wipe chips.
This will extend tire life and keep the blade from slipping.
If any looseness or damage occurs, the tool should be
brought to an authorized D
repair or replacement as soon as possible. Continued use
of the tool with loose or damaged rubber tires will cause
unstable travel of the band saw blade.
7. Close the blade guard and securely latch the two
blade guard latches. Rotate the blade tension lever 
counterclockwise 180 degrees until it stops.
Blade Tracking (Fig. A, H)

WARNING: To reduce the risk of serious personal
injury, turn tool off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start‑up can cause injury.
NOTICE: Excessive tightening of the adjustment screws
could result in damage to the saw.
Your band saw is equipped with an adjustable blade tracking
mechanism which assures proper blade tracking at all times.
The blade is properly adjusted when it is sitting fully on
rubber tires 
 21 
guide bearings 
and
To Adjust the Blade Tracking (Fig. A, H)
1. Turn and open the blade tension lever 
to the tracking screw 
2. Use a 13 mm wrench to loosen the lock nut 
3. Use a 4 mm hex wrench 
1/4 turn clockwise or counterclockwise (Fig. H).
nOTE: Turning the tracking screw clockwise moves
the blade toward the guide roller, turning the tracking
screw counterclockwise moves the blade away from the
guide roller.
4. Tighten the locking nut and close the blade tension lever
and blade guard. (It will be necessary to run the saw to
observe the tracking.)
5. Observe blade tracking between runs and repeat Steps
1–4 as necessary to achieve proper blade tracking.
Blades
This portable band saw is set up for use with
0.02" (0.5 mm) thick, 1/2" (12.7 mm) wide and
35‑1/4"–35‑3/8" (896 mm–899 mm) long blades. DO nOT
use 0.025" (0.64 mm) thick blades.
and remove any large chips
 20 
 21 
are mounted on the pulleys 
WALT service center for
e
and lightly touching one or both of the rear
 25 
.
 13 
.
 5 
to turn the tracking screw 
 19 
. The
 8 
 8 
to allow access
(Fig. H).
 7 
 13 

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