Black & Decker SCRUGUN 2020-10 User manual

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ACCESSORY ASSEMBLY & ADJUSTMENTS
The 1/4* HEX DRIVE QUICK CHANGE CHUCK (Fig. 3)
is used on ail positive and versa-clutch units. A ball retainer pro¬
vides positive locking of all accessories in the chuck. Push for¬
ward on the ball retainer and hold while inserting or removing ac¬
cessories. Release for positive accessory retention.
DEPTH ADJUSTMENT ON DRYWALL UNITS (Fig. 5)
1. Turn locator until end of bit extends 3/16" beyond end of
locator.
2. Test drive a fastener in scrap material to determine if
fastener is correctly seating.
3. Further adjustment may be necessary to increase or
decrease the fastener depth.
ACCESSORY ASSEMBLY & ADJUSTMENT FOR
DRYWALL UNITS (Fig. 4)
The 1/4" HEX DRIVE BALL LOCK CHUCK is used on all drywall
screwdrivers.
Figure 5
TO INCREASE, turn the locator so that end of bit extends further
from end of locator.
TO DECREASE, turn the locator so that end of bit is closer to end
of locator.
Black & Decker Drywall Units have very fine depth settings, each
“detent” is .0052" or one revolution of the locator equals .083"
change in depth setting.
To change Bit Holders on Drywall Units
1. Unscrew collar AND locator assembly from gear case (left
hand thread).
NOTE: There is no need to unscrew locator from collar.
2. Pull bit holder straight out with pliers, if it is difficult to
remove.
3. Push new bit holder into spindle until ball lock snaps in
groove in bit holder shank.

SCREWDRIVER ACCESSORIES continued
Hex Drive Shank Extensions
SHANK SIZE
1/4**
SQ. DR.
1/4"
LENGTH
2*
*For use with 1/4" square drive sockets—1/4"
hex. 1/4"*
1/4" 6"
Sockets for the above:
TYPE
SOCKET SIZE
DIAM.
LENGTH
FOR DRIVING (• fjl
1/4"
1/2"
7/8"
HEX NUTS AND
Non-
5/16"
1/2"
7/8"
SHEET METAL
SCREWS 1/4" Sq. Drive
Magnetic
3/8"
9/16"
15/16"
1/4"
7/16"
7/8"
Magnetic
5/16"
1/2"
7/8"
3/8" 9/16*
7/8"
3,4
3,4
4,5
3
4 2
5
5 6 4
5
3,4
6
6
8 5
6
—
8
8
10
6,8
8
5,6
10
10,12 12
10
10
8
12 , 1 4 , 1 / 4
14 , 1 6 , 1 /4 1/4
12 , 1 /4
12 , 1 /4
10
12 14
, 1 /4
1/4
12 12
10
1/4" Hex Bits With Rotating Finder For Use With Any 1/4" Hex Drive
Power Tool |
BIT
LENGTH
4,5
4,5
4 , 5 ,6
4,5
4,5
— 3
- 1 / 2 "
8
8
8,10
6
8
5,6
3 - 1 / 2 "
8
8
8,10
6
8 5,6
6 "
10
10
12
8,10
10 8,10
3 - 1 / 2 "
12
12
1/4
-
12
-
3 - 1 / 2 "
MISC. SCREWDRIVER ACCESSORIES
6" Hex Bit Extension
For use with 1/4" Hex Shanks and/or
other extensions.
1/4" Drive Magnetic Socket
For driving 8 Pointed Nvlon and
Steel Headed Screws.
Heavy-Duty Tool Box
Cat. No. 50078
\L
Scrugun® Holster Cat. No. 69590
attaches to belts up to 2-3/4" wide.
Magnetic Bit Tip Holders
for Drywall Scruguns
1/4" Hex Shank for 1/4" Hex Tip (3-3/32
long) for use with all Drywall
SCRUGUNS® EXTRA LENGTH BIT TIP
DRIVE BODY.
1/4" Hex Shank for 1/4" Hex Tip (2-31/32
long) for use with all Drywall
SCRUGUNS® STANDARD LENGTH
STAINLESS STEEL BODY. (Standard
equipment on H.D. drywall SCRUGUNS® )
BELT CLIP Cat. No. 69600
For all H.D. SCRUGUN Screwdrivers.
(Standard equipment on H.D. drywall
SCRUGUNS®)
7

VERSA-CLUTCH FOR DRIVING A
WIDE RANGE OF FASTENERS
RPM WOOD
SCREWS
NOMINAL CAPACITY
SELF
LAG DRILL
SCREWS SCREWS
THREAD
CUTTING
SCREWS
SHEET
METAL
SCREWS
MACHINE
SCREWS
0-1200
#12
1/4" w/pi!ot hole
1/4" 1/4*
3/16" CRS
1/4*
1/4* .
1. Install proper fastener driving accessory and set screwdriver for
correct rotation,
2. Adjust clutch setting. See Fig. 4.
3. Place fastener in accessory, contact workpiece and apply
pressure to seat fastener keeping clutches engaged.
4. Upon fastener seating the clutches will ratchet. Disengage
screwdriver from fastener.
NOTE: With Versa-Clutch the operator has the ability to “override”
clutch ratchet if a fastener hits a wood knot, variable hardness in
steel workpieces or incorrect pilot holes. Increased operator
pressure will usually cause the clutches to “pick-up” and continue to
seat the fastener. Further, a quick twist of the collar will change the
clutch setting to overcome most driving difficulties and will provide
for immediate change in torque output giving the operator option to
drive a range of fastener sizes.
MAINTENANCE
CLEANING
With the motor running, blow dirt and dust out of all air vents with
dry air at least once a week. Wear safety glasses when performing
this.
Exterior plastic parts may be cleaned with a damp cloth and mild
detergent. Although these parts are highly solvent resistant, NEVER
use solvents.
1. Remove clutch housing by unscrewing in direction of arrow
(left hand thread).
2. Clamp tool or clutch housing in a resilent clamp.
3. Remove round clutch retaining rings with a very small
screwdriver or sharp pointed tool.
4. Install new clutches and new retaining rings.
NOTE : If the output spindle slides toward inside of gear case,
remove dead spindle spring and thread a 5/16" -18 bolt or
cap.screw into end of spindle and lift up to expose retaining
ring groove. Re-assemble dead spindle spring allowing no
more than 1/4" projecting from end of spindle.
5. Relubricate clutches. (See lubrication'
CHANGING CLUTCHES (Fig. 7) FOR VERSA-CLUTCH ONLY
CHANGING CLUTCHES (Fig. 8) FOR POSITIVE CLUTCH & DRYWALL UNITS ONLY
CLUTCH
OUTPUT
SPINDLE
RETAINING
RING
Figure 8
1. Remove three gear case screws from front and disassemble
gear case.
2. Clamp output spindle in a resilient clamp.
3. Remove round clutch retaining ring with a very small
screwdriver or sharp pointed tool.
4. Install a new clutch and retaining ring.
5. Relubricate clutches and gearing. (See lubrication).
5