EN
A:
B:
C:
D:
E:
F:
G:
H:
I:
J:
K:
-
Installation
104261
Discard o-ring (8) removed from unit on end cap (2). Retain this end cap.
System check (if desired): Connect cable (9) to the sensor on unit (7) with power off and
observing correct orientation. Turn on power then gently press in black plastic pin opposite
end to sensor in unit (7) until it comes to a halt. The yellow sensor LED should turn off and
then re-illuminate when the pin is released. Power off and remove cable from sensor.
Fit new o-ring (8) to cleaned end cap (2).
With reference to images and table over page
With the pump stopped and isolated from the air supply system, use 1/2" drive square to
unscrew then remove both end caps with their o-rings (2/8 & 10) from main air valve assembly
(1). Magnets may come out with the end caps.
Remove complete spool assembly (3), both spacers (6) and bumpers (4) along with magnets
(5) if not already removed.
The simplest fitting procedure is to remove end cap and o-ring (10) and replace with stroke counter
unit (7), ensuring magnet remains in its correct location. The following procedure outlines the
removal of the spool valve assembly and associated parts for cleaning to avoid contamination of the
stroke counter.
Clean all remaining removed components. Spool and sleeve assembly (3) have a precision fit
together - if separated must be completely clean to avoid jamming and / or damage.
Replace spool and sleeve assembly (3), spacers (6) and bumpers (4) in their correct order of fit
(as shown) into main air valve assembly (1), lightly greasing where indicated.
Grease stroke counter unit (7) thread its o-ring and with magnet (5) aligned inside, insert then
tighten into main air valve assembly (1). Tighten to specified torque.
Screw the cable plug (9) onto the sensor connector on unit (7) - observe correct orientation.
Discard one valve block end cap and o-ring (10) but first remove magnet if trapped inside and
fit it into the stroke counter unit (7) inside the housing around the black plastic operating pin.
Keep magnet clean - if metallic swarf attaches, it can often be removed by applying then
removing sticky tape to the magnet surface.
Grease o-ring (8) and end cap (2) and with its magnet (5) fitted inside, fit and tighten into main
air valve assembly (1). Tighten to specified torque.
77-3336 R1.0
7/24
www.carlisleft.com
