naval dockyard, mumbai - Irfc-nausena.nic.in
naval dockyard, mumbai - Irfc-nausena.nic.in
naval dockyard, mumbai - Irfc-nausena.nic.in
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DEPT: QC(E) C. No<br />
74<br />
SHIP: FC MADHUR<br />
NAVAL DOCKYARD, MUMBAI<br />
QUALITY ASSURANCE PLAN<br />
REV DATE: 23 May 12 FORM Q C E 0 7 4 R E 0 1 0<br />
No:01<br />
NO<br />
JOB TITLE :REFIT<br />
QAP No : QCE74 245 QAP DATE : 11JUL12 PAGE 5 OF 22<br />
E20009 Defect Description<br />
Overhaul and clean both hydraulic rudder<br />
motor(Type HSG TK 70), renew top & bottom oil<br />
seals, piston seals, “O” r<strong>in</strong>gs as per sample and refit<br />
relief valves(set pressure40 kg/cm2). Prove the<br />
system on board and offer trials. (Make Geeta Engg<br />
Works P ltd, Thane). Qty 02<br />
1 3 3<br />
Activity Description<br />
Dra<strong>in</strong> Oil from the motor. Disconnect all the<br />
associated hydraulic pipes, disconnect the<br />
potentiometer and feed back l<strong>in</strong>kage. Remove p<strong>in</strong><br />
and tie rod. Open all the fasteners hold<strong>in</strong>g the cover.<br />
Hold the rudder stock on the cha<strong>in</strong> block if tak<strong>in</strong>g<br />
whole load of the rudder stock. Loosen the nut<br />
hold<strong>in</strong>g the rudder stock. Remove the tiller block.<br />
Remove the oscillator piston along with the piston<br />
seal. Check the hous<strong>in</strong>g for scor<strong>in</strong>g if so follow the<br />
<strong>in</strong>struction by the QC(E) rep. check the bottom seal<br />
journal surface if scor<strong>in</strong>g the same must be mach<strong>in</strong>ed<br />
/ renew the sleeve. Check the centre bush for the<br />
clearances if excessive the same must be renewed.<br />
Renew bottom seal. Check the top seal journal and<br />
renew as above. Renew piston seal of OEM make. Fit<br />
all the components and pressure test for leakages if<br />
sat go for performance trials.<br />
DYT/INCOD/1213/106(a)/PLYCM/MADHURREFIT/420 87/127