Yoshitake GD-400, Product Manual

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21
■EPDT-179c■
Presumable cause I.8: Foreign object is pinched between spindle
⑫ ⑫ ⑫ ⑫
and slide of bottom
guide
⑯ ⑯ ⑯ ⑯
.
Action (27) : Follow steps in Actions (7) to (13). After removing the object, go to Actions (18) to (23)
.
Presumable cause I.9: Hexagon nut
⑭ ⑭ ⑭ ⑭
on the valve is loosened.
Action (28) : Follow steps in Actions (7) through (13). And then go to Actions (17) to (23).
Presumable cause I.10: Hexagon socket head cap bolt
⑨ ⑨ ⑨ ⑨
on upper guide is loosened.
Action (29) : Follow steps in Actions (7) to (12). Tighten hexagon socket head cap bolt
⑨
. (Tightening
torque: 5 N·m) Go to Actions (19) to (23).
Presumable cause I.11: Balance diaphragm
○
○ ○
○
7777
is damaged.
Action (30) : Perform Actions (7) to (12). Unscrew hexagon socket head cap bolt
⑨
and remove top
guide
⑧
.
→ → → → → → → →
Action (31) : Replace balance diaphragm
⑦
. Place top guide
⑧
and secure it with hexagon socket head
cap bolt
⑨
. (Tightening torque: 5 N·m)
→ → → → → → → →
○
Assembling the balance diaphragm
Cross sectional view
Action (32) : Complete Actions (19) to (23).
Upper diaphragm side
Lower diaphragm side
Apply grease
(Recommended product: G501,
silicone grease from Shin-Etsu
Chemical Co., Ltd.)