27
Pul-Blast
AR pump system
Read this manual completely before operating: follow all safety instructions.
HVC block parts
13
TOP VIEW CUT-AWAY
14
1
11
10
2
13
9
8
3
7
6
4 12
5
troubleshooting: spray manifold will not spray
Check that there is liquid in the tank.
Check that pressure is adequate on pressure gauge.
If not, refer to the pressure drop section in the spray
troubleshooting section.
Check the spool rotation,
13
. If the spool rotates easily
by hand but not by the motor, check the wiring.
electric hu-valve control- daily maintenance
When flushing the plumbing at day’s end, cycle fresh
water through the spray lines, turning the spray ON and
OFF several times.
electric hu-valve control- seasonal storage
Perform the line flush, as above.
Disconnect the vinyl lines and inject oil into the upper
and lower chambers of the Hu-Valves and into the HVC
block.
Re-connect the vinyl lines.
troubleshooting: spray manifold will not shut off
Check Hu-valve orifice and tube for blockage.
Check Hu-valve for ruptured diaphragm.
Check the spool rotation,
13
. If the spool rotates easily
by hand but not by the motor, check the wiring.
If the unit continues to spray with HVC spools in the OFF
position, a blockage caused the coupler
1
to slip on the
spool
11
. Remove the motor
14
and loosen set screws
2
.
Align the roll pin
13
with the incised line of flow marks
on the spool
11
as illustrated in
fig. i
, above. Tighten
the set screws
2
and re-install the motor
14
.
fig. i
No. Part #
Description
Qty
HUV510
complete operator block, does not
include motor or mount brackets
-
1
HUV5116
coupler
2
2
HUV5119
set screw
8
3
HUV5112
•
o-ring
2
4
HUV5113
•
teflon seat
2
5
HUV5115
•
keeper
2
6
HUV5118
bushing
2
7
HUV512
HVC operator block
1
8
HUV525
block mount bracket
1
9
HUV515
•
apex motor mount
3
10
HUV5202
torque bracket
2
11
HUV5111
spool
2
12
HUV5114
•
o-ring seat
2
13
HUV5117
roll pin
2
14
HUV5201
motor
1
15
HUV529
shield (not pictured)
1
HUV500KIT
repair kit includes all
•
parts
