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NOTES for JH7RH-B:
Special Points Pertaining to Orifice and Orifice Gasket Reassembly
Follow the steps below when inserting the orifice into the body in order to ensure that the gasket
does not fall off and is inserted correctly without protruding from the groove.
1. First, insert the orifice alone into the orifice-housing section of the body, in order to ascertain
how much of it should be sticking out.
2. Take the orifice out again, and then fill the groove in the orifice with water and insert the
gasket. The surface tension of the water will now hold the gasket in place, and it will not fall out
even if the orifice is pointed downwards.
3. Without altering anything, insert it into the orifice-housing section of the body and check to
make sure that the amount of orifice sticking out of the body is the same as the amount that
was sticking out when only the orifice was inserted in step 1.
4. Hold it in that position by hand and, after hand-tightening the orifice locknut from the outlet
side, hold the orifice in place from the body float chamber side using a drive wrench and then
tighten the orifice locknut to the proper torque using a torque wrench.
Special Points Pertaining to Cover and Outlet Cover Reassembly
1. After operation following disassembly
and reassembly, it is recommended that
the trap be let to sit for a day and then
receive additional tightening.
2. Using the tightening torques for the
cover nuts and outlet cover nuts as a
reference, tighten until the cover and
outlet cover gaps are uniform. The gaps
should be 1.5 mm (
Parts &
Model
Number
Cover Bolt / Nut 12
Orifice 4
Orifice Plug 6
Drain Plug* 27
Air Vent Valve Seat 20
Model
Cover Nut 12
Orifice 4
Orifice Plug 6
Outlet Cover Nut 30
Drain Plug 27
Orifice Locknut 28
Air Vent Valve Seat 20
Air Vent Guide 33
Model
Cover Nut 12
Orifice 4
Orifice Plug 6
Outlet Cover Nut 30
Drain Plug 27
Air Vent Valve Seat 20
Air Vent Guide 33
* Option for JH3-B, JH5RL-B, JH5RH-B
If drawings or other special documentation were supplied for the product, any torque given there
takes precedence over values shown here.
／
1
") or less.
16
Tightening Torque and Distance Across Flats
JH3-B
N . m
(lbf . ft)
mm
(
50
(37)
17
(
30
(22)
10
(
80
(59)
24
(
35
(26)
21
(
30
(22)
17
JH7RL-B
110
(81)
22
(
(210)
280
26
1
420
(310)
50
(
100
(73)
26
30
(22)
19
(
JH7.2R-B
150
(110)
24
(
1
350
(260)
38
(
1
700
(510)
46
(
100
(73)
26
30
(22)
19
(
Body
JH5RL-B
N . m
(lbf . ft)
(in)
mm
／
21
)
110
(81)
21
32
／
3
)
140
(100)
17
8
／
15
)
180
(130)
38
16
／
13
)
35
(26)
21
16
／
21
)
30
(22)
19
32
JH7RM-B
／
7
(150)
)
200
24
8
280
(210)
(1)
26
／
31
420
(310)
50
)
32
100
(73)
26
(1)
／
3
30
(22)
19
)
4
JH7.5R-B
／
15
)
200
(150)
30
16
／
1
)
600
(440)
46
2
／
13
)
800
(590)
46
16
(1)
100
(73)
26
／
3
)
30
(22)
19
4
150
(110)
30
̶ 11 ̶
Cover or
Outlet Cover
／
1.5 mm
(
1
")
16
JH5RH-B
N . m
(lbf . ft)
(in)
mm
／
(
13
)
170
(125)
24
16
／
(
21
)
140
(100)
17
32
／
1
(
1
)
180
(130)
38
2
／
(
13
)
35
(26)
21
16
／
(
3
)
30
(22)
19
4
JH7RH-B
／
(
15
)
700
(510)
46
16
(1)
1
／
(
31
)
32
200
(150)
30
(1)
250
(185)
32
／
3
(
)
30
(22)
19
4
100
(73)
24
JH8R-B
1
／
(
3
)
450
(330)
36
16
1
／
(
13
)
1000
(730)
60
16
1
／
13
(
)
16
160
(115)
24
(1)
100
(73)
26
／
(
3
)
30
(22)
19
4
1
／
(
3
)
150
(110)
50
16
〜 〜
1 N . m
10 kg ・ cm
(in)
／
(
15
)
16
／
(
21
)
32
／
1
(
1
)
2
／
(
13
)
16
／
3
(
)
4
1
／
(
)
13
16
1
／
(
3
)
16
／
1
(
1
)
4
／
(
3
)
4
／
15
(
)
16
1
／
(
13
)
32
／
2
3
(
)
8
／
15
(
)
16
(1)
／
3
(
)
4
／
1
31
(
)
32
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