172-65123MA-05 (LV Series) 23 Aug 2021
10
Disassembly/Reassembly
CAUTION
Be sure to use only the recommended components when repairing the
product, and NEVER attempt to modify the product in any way.
Failure to observe these precautions may result in damage to the product and
burns or other injury due to malfunction or the discharge of fluids.
Use the following procedures to remove components. Use the same procedure in
reverse to reassemble.
(Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.)
Removing/Reattaching Body (LV5/LV13/LV21)
Part
During Disassembly
During Reassembly
Body 1
Remove with a socket
wrench
Consult the table of tightening torques and tighten
to the proper torque
Removing/Reassembling Parts Inside Cover (LV5/LV13/LV21)
Part
During Disassembly
During Reassembly
Screen 7
Remove without bending
Being careful not to bend it, insert with the right side
up
Spring Clip
6
Remove with needle-nose
pliers
Fit securely into the spring clip slots
X-element
4
Remove from the
X-element guide
Holding the ball on the top of the X-element with
pliers, insert slowly, keeping the X-element level
and making sure it does not catch on the guide
(Figure A)
Cover
Gasket * 8
Remove, being careful not
to damage the gasket
Replace with a new gasket if misshapen or
damaged
* Only for brass LV5 and LV13
Figure A
Table of Tightening Torques (LV5/LV13/LV21)
Part
Size
Torque
Distance Across
Flats
mm
(in)
N
m
(lbf
ft)
mm
(in)
Body 1/Cover 2 (Brass)
(LV5, LV13)
8
– 15 (
1
/
4
-
1
/
2
)
80
(59)
27
(1
1
/
16
)
20, 25
(
3
/
4
, 1)
80
(59)
41
(1
5
/
8
)
Body 1/Cover 2 (Stainless Steel)
(LV5, LV21)
8
– 15 (
1
/
4
-
1
/
2
)
120
(88)
27
(1
1
/
16
)
(1 N
m
10 kg
cm)
Note: Be sure to coat screw threads with anti-seize only on stainless
steel models of LV5 and LV21
