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Page 5

Closer Adjustments

Backcheck

Latch

Sweep

Delayed Action

Closing Controls

Opening Controls

control range

control

range

control

range

control

range

Closing Power

Closing Cycle

Attention:

come in

three different sizes (4 through 6); each power
size can be increased by 50%. Adjust as
required.

are

adjustable sizes 1 thru 6.

For proper sizing see power adjustment chart

below right.

To adjust closer power,

.

Increase or decrease power as necessary.

(see illustrations above).

Valve

controls door speed in

Valve

controls door speed in

Valve

(Optional) controls door speed in

Use 1/8" hex-key furnished and adjust as
shown in

8340/8540 & 8350/8550 Models

See Figure 1.

8341/8541 & 8351/8551 Models

see Figure 1

"L"

Latch

Range.

"S"

Sweep

Range.

"D"

Delay Range.

Figure 2.

Adjust closing speed to between

4 to 7 seconds from 90°. Use of door by
handicapped, elderly or small children may
require greater closing time.

Opening Cycle

see illustration above).

"B" cushions (slows) door opening

in th   Backcheck Range.

(

Valve

e

NOTE: Never close this valve completely or

damage to closer may occur.

NOTE

: Maximum of 20 turns (360°) of Power Adjustment Shaft.

• Set closing power, as charted. Closer is shipped at power

setting as circled. See Figure 1 at left for illustration of how
to make these adjustments.

Power Adjustment Chart

Full Clockwise Turns of Closer
Power Adjustment Shaft

Interior Door

Exterior Door

10

12

13

15

14

Door Size

Inches

(meters)

28-32

(0.07-0.80)

37-42

(0.95-11.05)

43-48

(1.10-1.20)

33-36

(0.85-0.90)

17

17

19

Note:

Power adjustments
charted are
recommended where
possible to insure
proper door control.
See Note on Page 1
where  codes may
dictate reducing
these recommende
adjustments.

d

Closing Speed Controls

"L"

(Latch)

"S"

(Sweep)

Optional

(Delay Range)

"D"

"B"

(Backcheck)

NEVER close completely

Figure 2

slower

faster

stronger

weaker

Caution:

Do not back valves out
of closer or a leak will
result.

All valves are adjusted with
1/8" hex-key, furnished.

80-9380-2212-020 (06-09)

Closing Power Control

Figure 1

Power Adjustment Shaft

+

-

Use 5/16” Socket

or Adjustable Wrench

Norton ® is a registered trademark of Yale Security Inc., an ASSA ABLOY Group company.
Copyright © 2005, 2009, Yale Security Inc., an ASSA ABLOY Group company. All rights reserved.
Reproduction in whole or in part without the express written permission of Yale Security Inc. is prohibited.

3000 Highway 74 East  •  Monroe, NC 28112
Tel:

•  Fax: (800)-338-0965

www.nor tondoorcontrols.com

(877)-974-2255

ASSA ABLOY

Summary of Contents for 8341ST

Page 1: ...inge Side Mounted For Use on Doors with 4 or 5 115 127mm Wide Butt Hinges have 50 power increase capability Closer size 4 has the weakest power closer size 6 has the strongest power can be adjusted from size 1 thru 6 Sized Door Closers 8340 8540 8350 8550 Multi Sized Closer 8341 8541 8351 8551 8040 8050 Slide Track Door Closers 80 9380 2212 020 06 09 PULL SIDE MOUNTED PUSH SIDE MOUNTED 8340ST 8341...

Page 2: ...rame or hinges HO or NHO Dimensions are given in Template Sex bolts not shown Hinge 1 1 4 20 x 5 8 lg phillips drive with thread lock arm washer 1 Track Assembly Channel Screw pack 1 2 2 End Cap 2 Slider Cushion Block Stop Block Non Hold Open Assembly Pack Box No 40 7940 0050 000 Stop Position Screw Stud Optional 8500M Series Cover 3rd hole Arm Rod Arm Tube 8 32 x 1 4 lg hex socket cap screw with ...

Page 3: ...and Left hand Top View Pull mount Position slide arm with counterbore facing up and align with pinion flat as illustrated Install onto pinion Push mount With S L valves closed place arm on closer pinion shaft with arm at a 45 angle to frame face Rotate arm toward hinge at least 50 Remove arm and reinstall on pinion with arm almost parallel to frame face before pinion shaft can rotate far enough to...

Page 4: ...al door and frame reinforcement From centerline of hinge or pivot point to end of track is 27 11 16 703 3mm Dimensions are given in 3rd hole Arm Rod Arm Tube Full Plastic Cover with Insert 1 8 32 x 1 4 lg hex socket cap screw with thread lock Counterbore facing up 1 4 20 x 5 8 lg truss head phillips drive with thread lock 2 7 16 150 8 3 4 19 Narrow Plastic Cover with 1639 Pinion Cap 2 Optional 850...

Page 5: ...nt Shaft Set closing power as charted Closer is shipped at power setting as circled See Figure 1 at left for illustration of how to make these adjustments Power Adjustment Chart Full Clockwise Turns of Closer Power Adjustment Shaft Interior Door Exterior Door 10 12 13 15 14 Door Size Inches meters 28 32 0 07 0 80 37 42 0 95 11 05 43 48 1 10 1 20 33 36 0 85 0 90 17 17 19 Note Power adjustments char...

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