EN
A:
B:
C:
D:
E:
F:
G:
H:
I:
J:
K:
L:
M:
N:
O:
P:
Use circlip pliers or similar to remove circlips (7) at both ends of the valve spool bore. Caution -
circlips may spring out!
Screw the cable plug (10) onto the sensor connector (9) - observe correct orientation.
-
Refit air line connection (11) to the valve block (1). It may be necessary to use low strength
thread sealant or PTFE tape to provide an airtight seal into the valve block.
Retain one end cap (4), remove and discard its existing o-ring, clean cap then fit new o-ring in
kit (5).
Insert new spool (3) into valve block (1) bore with metal target end (note 4) facing to the right
(looking onto air line connection face of block). Avoid damaging o-rings.
Press the end cap (4) into the left end of the bore and the sensor housing with sensor (9) into
the right end (looking onto air line connection face of block). Avoid damaging o-rings.
Refit circlips (7) into their grooves in the valve block (1) at both ends. Check spool (3) slides
up and down the bore.
Regrease then refit the slider block (2) (large flat face inwards) followed on by ceramic slider
block (6) (larger slot profile outwards).
Place new gasket (8) supplied in the kit onto valve block (1) face then refit valve block (1) to
the pump unit with sensor end at the top using the four caphead screws (12). Tighten evenly
to achieve specified torque.
With reference to images and table over page
Use an M5 threaded screw to pull out existing end caps (4) & (14) then push out the original
spool (13).
Discard one end cap (14) and the existing spool (13) with their o-ring seals.
System check (if desired): Connect cable (10) to the sensor (9) with power off and observing
correct orientation. Turn on power then bring the steel target on the end of the spool (3) up
against the end face of the black plastic housing containing the sensor (9) to trigger it. The
yellow sensor LED should turn off and then re-illuminate when the steel target is moved away
from the sensor. Power off and remove cable from sensor.
With the pump stopped and isolated from the air supply system, remove the air line connection
(11) from the valve block (1).
Release the four caphead screws (12) in the valve block (1) and lift the complete valve block
assembly off the pump. Remove and discard the existing valve block gasket (8).
Remove ceramic valve plate (6) and slider block (2) inside. Clean and retain both for reuse.
Grease o-rings on spool (3), cap (4) and housing (9). Grease valve bore (note 6).
104263
Installation
77-3336 R1.0
15/24
www.carlisleft.com
