SECTION
4
BLUE
LINE THERMALWAVE
®
5M
36
SOLUTION OUTLET CHECK
VALVE
Inspect the check valve whenever performing
service on the chemical pump or if flow problems
are occurring in the chemical system.
1. Remove the check valve, ensuring that the small
o-ring on the seat comes out with it
2. Next, remove the seat using a 5/16 in. Allen
wrench
3. Check the Teflon seat for wear or debris. Clean
and replace the seat if necessary.
4. Inspect the poppet and the spring for wear or
damage. Clean and replace as necessary.
5. Re-assemble the check valve. Thread the seat by
hand until snug. Then tighten with a 5/16 in Allen
wrench.
DO NOT
over-tighten.
23-023 VLV, CHECK, CHECK VLV MANIFOLD
Item #
Part Number
Qty.
Description
1 27-009 1
CAP, CHECK VALVE
ASSY. SS
2 41-007 1
ORING, 7/8 ID X 1-
1/16 OD
3 15-004 1
SPRING, CHECK
VALVE ASSY.
4 27-010 1
POPPET, CHECK
VALVE ASSY
5 27-004 1
INSERT, SEAT-CHK
VLV ASSY TM
6 27-011 1
SEAT, CHECK
VALVE ASSY.
7
41-008
1
ORING, ½ ID 5/8 OD
Note:
Improper seating of the check valve seat,
poppet, damaged spring or o-rings will result in
poor performance of the chemical system.
6. Lubricate the o-rings with o-ring lubricant. (Part
# 13-003) and re-install.
CHEMICAL PUMP
The
THERMALWAVE
®
unit features a stainless
steel chemical pump and metering system. The
chemical pump requires only the replacement of
the diaphragm and check valves. To replace the
diaphragm, unscrew the cover from the body.
When replacing the diaphragm, lube the outer
edges of the diaphragm with o-ring lubricant (Part
#13-003) and reassemble.
To replace the check valves, remove the check
valve caps, replace the check valves and
reassemble using new o-rings.
DO NOT
attempt to
reuse o-rings after the check valves have been
removed.
PACKING NUT ADJUSTMENT
CHEMICAL
METERING/SELECTOR VALVES
Inspect the packing nut for proper tension on the
chemical metering and chemical selector valves
every
200 hours.
When turning the knob, there
should be some resistance. If not, slightly tighten
the packing nut.
DO NOT
over-tighten. Keeping
the packing properly adjusted will eliminate
possible leaks and will add to the overall life of the
valves.
