YAMADA NDP-20 series, Maintenance Manual

Page: 13 / 14

10
8. Retightening of Tie rods
■
Metal type
▪ The torque should be applied on the occasion of
(1) Right before the pump to use.
(2) There are any leaks of material on daily inspecting a
pump.
Retainer bolts from the
out chamber
Retainer bolts from the
manifold
B
□
C
[
-D
]
, B
□
N
[
-D
]
, B
□
E, B
□
V 10 N•m 10 N•m
B
□
T 13 N•m 20 N•m
B
□
H
[
-D
]
, B
□
S, B
□
H/T
13 N•m 10 N•m
NDP-20
BAT-D 13 N•m
IN SIDE 15 N•m
OUT SIDE 20 N•m
Retainer bolts from the
out chamber
Retainer bolts from the
manifold
B
□
C, B
□
N, B
□
E, B
□
V 10 N•m 10 N•m
B
□
T 20 N•m 35 N•m
NDP-25
NDP-32
B
□
H, B
□
S, B
□
H/T
20 N•m 10 N•m
<
NOTE
>
▪ Tighten the bolts that balance should be equal from both side on diagonal line with even torque.
▪ Retighten the Out chamber and then the manifold in this order. [Fig.8.1]
■
Plastic type
▪ The torque should be applied on the occasion of
(1) Right before the pump to use.
(2) There are any leaks of material on daily inspecting a
pump.
Retainer bolts from the
out chamber
Retainer bolts from the
manifold
B
□
C, B
□
N, B
□
E, B
□
V 10 N•m 10 N•m
BPT 13 N•m 12 N•m
NDP-20
B
□
H, B
□
S, B
□
H/T 13 N•m 10 N•m
Retainer bolts from the
out chamber
Retainer bolts from the
manifold
B
□
C, B
□
N, B
□
E, B
□
V
10 N•m 10 N•m
B
□
T, BVH 20 N•m 12 N•m
NDP-25
BPH, B
□
S, B
□
H/T 20 N•m 10 N•m
<
NOTE
>
▪ Tighten the bolts that balance should be equal from both side on diagonal line with even torque.
▪ Retighten the Out chamber and then the manifold in this order. [Fig.8.2]