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50 Series
Right Hand
Door
or
Left Hand
Door
Flat
B
Arm Screw
1-1/2
(38)
Latch
Faster
L
+
S
Slower
-
Non Hold Open Door Closers — Parallel Arm
Open Valves
6
A
Flat
9
Spring Power Adjust
51(BF) only
(If necessary)
Backcheck
12
— 4 —
Assemble Arm
7
Caution:
Do Not Back
Valve Out
Completely
10
Stronger
+
P A
Weaker
-
Pinion Cap
13
or Optional Cover
Stronger
+
B C
Weaker
-
Caution:
Don't completely
close valve
80-9350-2502-010 (05-12)
Sweep
S
L
or
8
11
Slower
-
Faster
+
14
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