Farr HD8625 - C. SAFETY DOOR DOES NOT OPERATE OR IS MALFUNCTIONING

4.4
hD8625 8-
5
/
8
” 35K Tong
Technical Manual
TroubleshooTing
C. SAFETY DOOR DOES NOT OPERATE OR IS MALFUNCTIONING
POSSIBLE PROBLEM SOLUTION(S)
1
Safetydoorswitchrequiresadjustment. Adjustswitchaspersection3.F.5
2 Safetydoorswitchhasfailed Testsafetydoorswitchforproperfunctionandreplaceifnecessary
3 Contaminationinhydrauliclines Ensureallthreeflexiblehydrauliclinestosafetydoorswitcharefree-flowing
4
Pilot-to-open valve in safety door valve block is
malfunctioning.
Removeeachvalve.Inspectseatsandsprings.Replacevalve(s)ifdamageisseen
onvalveseats,orifspringappearstobedamagedorbroken.