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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)
12
Backcheck
— 4 —
7
Caution:
Do Not
Back
Valves Out
Completely
10
Stronger
+
P A
Weaker
-
13
Pinion Cap
or Optional Cover
Stronger
+
B C
Weaker
-
Caution:
Screw pinion cap onto
pinion shaft by hand or
Don't completely
with a Phillips screw driver -
close valve
DO NOT OVER TIGHTEN.
80-9350-2502-010 (12-09)
Assemble Arm
Sweep
L
or
8
11
Slower
S
-
Faster
+
14
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