TO REPLACE O- RINGS INSIDE VALVE ASSEM-
BLY
a) Unscrew Lock Nut at the end of the
HT500
Handle.
b) Remove Handle Cover.
c) Slide out Valve Assembly while placing your nger
over the Spring Seat. BE CAREFUL NOT TO LET
THE SPRING AND THE SPRING SEAT SHOOT
OUT FROM THE HOUSING
d) Clean all parts with alcohol only.
e) Replace
OS730
O-Ring Set (set of 3).
f) Lube new O-rings with
OL111
O-Ring Lube.
Valve Assembly
Handle
Cover
Lock Nut
DAILY MAINTENANCE
WEEKLY MAINTENANCE
SC525
MS229 OS133
©
®
®
©
AF625
©
OS731
FC639
©
OS132
When installing OS133, the HT01
should go thru the OS133.
®
Desoldering
Head Housing
• Remove and inspect Tip and Heater Assy.
• Inspect all Filters
• Remove solder debri from Desoldering Head
Housing
• Inspect Valve Assy.
• Inspect all O-Rings and Seals
TO REPLACE FILTER & O-RING INSIDE
DESOLDERING HEAD ASSY.
1. Pull out FC639 from Housing.
2. Unscrew SC525 from FC639 to remove AF625.
3. Insert new AF625 inside SC525 and screw back
on.
4. Clean and apply OL111 on OS731 & OS132
O-Ring.
CAUTION: Make
sure the wires are
not pinched by
Valve Assembly.
Spring Seat
OS730
O-ring set
HT01
OS133
© -
Clean
® -
Replace
OPTIONAL FC641
Large Filter Cartridge Assembly
1. Pull out FC641 from Housing.
2. Unscrew FC641 remove old AF041.
3. Insert new AF641 inside FC641 and
screw back together.
4. Clean and apply OL111 on OS731 &
OS132 O-Ring.
Page 9
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