title workshop report of pvg32 danfoss control valve...

ALATAS Ref. No.: SGSR-1701-032

Issue Date: 12th Jan 2017

Page: 1 of 12

Main Office 1 International Business Park The Synergy, #03-01E Singapore 609917 [email protected] www.alatas.com

Workshop address: 36 Toh Guan Road East, #01-41,Enterprise Hub Singapore 608580 [email protected]

TITLE Workshop Report of PVG32 Danfoss Control valve blocks

x2 PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane

x1 PVG32 Control Valve & Emergency Valve from 2ton Prov. Crane & x1 PVG32 Control Valve & Emergency Valve from 10ton Prov. Crane

Vessel Name: xxxxxxx

IMO No. / Hull No.:

Flag State:

Customer:

xxxxxxx

xxxxxxx

xxxxxxx

Crane 1 Crane 2 Crane 3 Crane 4

Make: Hagglunds

Type: HH 630-2020-4

S/N: HH-Cranes

Build Year: 2011

mailto:[email protected]

http://www.alatas.com/

mailto:[email protected]

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Table of Contents

1. Component Details ………..………………………………………………………………………….................................. 3

2. Details to the Repair ………………………………………………………………………………………………………………….. 3

3. Repair Report …………………………………………………………………………..................................................... 3

3.1 Reason for Repair ………………………………………………………………………………………………………………. 3

3.2 Inspection Findings …………………………………………………………………………….................................. 3

3.3 Scope of Repair ………………………………………………………………………………………………………………….. 3

3.4 Table Of Parts Used …………………………………………………………………………………………………………... 3

4. Picture Report ……………………………………………………………………………………………................................. 4

4.1 Picture Report - Dismantling ………………………………………………………………………………………………. 4

4.2 Picture Report Assembling ……………………………………………………………………….………………………… 8

5. Documents ……………………………………………………………………………………………………………………………….. 12

5.1 Drawings ……………………………………………………………………………………………………………………………. 12

5.2 Test Reports ………………………………………………………………………………………………………………………. 12

5.3 Certificates …………………………………………………………………………………………………………………………. 12

End of Document ……………………………………………………………………………………………………………………………… 12

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1. Component DetailsDescription Make Type Serial Number Part Number

PVG32 Control valve Danfoss PVG32 Nil WR:PVG32

2. Details to the RepairName of Workshop Technician Jeffrey Repair Duration 6th Jan 2017 to 8th Jan 2017 Location Alatas Workshop

3. Repair Report

3.1. Reason for Repair

Received x2 units of PVG32 control valves from 20ton Hose Handling Crane (Port & Stbd.) Received x1 unit of PVG32 control valve & emergency valve from 10ton Prov. Crane (Port) Received x1 unit of PVG32 control valve & emergency valve from 2ton Prov. Crane (Stbd.) Need to carryout top urgent standard overhaul on all 4 units of PVG32 Control Valves

3.2. Inspection Findings

Completely dismantled all 4 units, cleaned to proper & carryout through inspection and found thefollowing defects:

• All seal / O ring-kit found to be worn out and need to be replaced.• All front and back covers of the block were worn out due to its material: Aluminium, and need to be

replaced.• Manual levers were found without tension and were found wobbly. Thus, need to be replaced.• All fittings were corroded and need to be replaced.• Only 2ton Prov. Crane’s Emergency valve unit (x1) was found damaged and need to be replaced

with new set. The spring attached to it was broken and need to be replaced as well.

3.3. Scope Of Repair

• All spools and valves were well polished and lapp as per requirement and assembled with new setof PVG32 PVAS Assembly kit, which was purchased for all 4 units (Consists of complete seal / O-ring kit for the PVG32 valves & bolts as well)

• All front and back covers replaced with new set accordingly on all 4 units.• New set of PVG32 PVM Mechanical Actuation (Manual Levers) was replaced on all 4 units.• For x1 2ton Prov crane’s emergency valves, new ones were purchased and replaced accordingly

as well as new spring fabricated and replaced as well.• Upon complete re-assembly of the valves with new parts, they were all pressure tested and

results, found to be in satisfactory condition.

3.4. Table of Parts used Pos. Qty. Part No. Description Pos. no. on

drawing

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4. Picture Repair Report

4.1. Picture Report - Dismantling

Title : x2 PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port & Stbd) Comments : X2 units upon arrival

Title :P VG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port) Comments : Unit completely dismantled -O rings worn out -Front & back covers were worn out surface area -Mechanical Actuation were found loose fit and corroded -All fittings were found defective and need to be replaced

Title :P VG32 Control Valve from 20ton Mid Ship Hose Handling Crane (STBD) Comments : Unit completely dismantled -Front & back covers were worn out surface area -Mechanical Actuation were found loose fit and corroded -O rings worn out -Fittings were found defective and need to be replaced

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Title : x2 PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port & Stbd) Comments : Additional Pictures showing the defects Badly corroded fittings.

Title : x2 PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port & Stbd) Comments : Additional Pictures showing the defects: Worn out O-rings

Title : x2 PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port & Stbd) Comments : Additional Pictures showing the defects: Mechanical Actuation found defective and corroded.

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Title : x2 PVG32 Control Valve from 2ton & 10ton Prov Crane Comments : X2 units upon arrival

Title : PVG32 Control Valve from 10ton Prov Crane Comments : Control Valve and Emergency Valve from 10ton Crane.

Title : PVG32 Control Valve from 10ton Prov Crane Comments : Unit completely dismantled -O rings worn out -Front & back covers were worn out surface area -Mechanical Actuation were found loose fit and corroded -Fittings were found defective and need to be replaced

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Title : Emergency Valve from 10ton Prov Crane Comments : Unit completely dismantled -Ball valves were in good condition and to be re-used -Fittings were to be replaced accordingly. -Spring was intact and to be re-used.

Title : PVG32 Control Valve from 2ton Prov Crane Comments : Control Valve and Emergency Valve from 2ton Crane.

Title : PVG32 Control Valve from 2ton Prov Crane Comments : Unit completely dismantled -Mechanical Actuation were found loose fit and corroded -Front & back covers were worn out surface area -O rings worn out - -Fittings were found defective and need to be replaced

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Title : Emergency Valve from 2ton Prov Crane

Comments :

Unit completely dismantled

-Ball valves were in bad condition and to be replaced -Fittings were to be replaced accordingly. -Spring was damaged and to be replaced.

4.2. Picture Report - Assembling

Title : PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port)

Comments :

New parts arrived and re-assembly in progress for Port side control valve.

Title : PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Stbd)

Comments :

New parts arrived and re-assembly in progress for Stbd side control valve.

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Title : PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Stbd) Comments : Unit (Stbd) re-assembled and pressure tested.

Title : PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port) Comments : Unit (Port) re-assembled and pressure tested.

Title : PVG32 Control Valve from 20ton Mid Ship Hose Handling Crane (Port & Stbd) Comments : Units painted with x1 layer of marine grade primer and delivered on-board vessel.

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Document Code Edition Established Updated Reviewed Approved All rights reserved – E. & O. E. P a g e 1 0 o f 1 2 ASG-SV-05 01 / ct 21.03.2016 - G. Lunda A .Horntrich © ALATAS Singapore Pte Ltd

Title : PVG32 Control Valve from 10ton Prov Crane Comments : New parts arrived and re-assembled control valve. Defective Parts

Title : Emergency Valve from 10ton Prov Crane Comments : Emergency Valve (10ton Prov. Crane) re-assembled and painted with primer.

Title : PVG32 Control Valve from 10ton Prov Crane Comments : 10ton Prov crane control valve block completely re-assembled and pressure tested Units painted with x1 layer of marine grade primer and delivered on-board vessel.

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Title : PVG32 Control Valve from 2ton Prov Crane Comments : New parts arrived and re-assembled control valve & pressure tested accordingly.

Title : PVG32 Control Valve from 2ton Prov Crane Comments : Units painted with x1 layer of marine grade primer and delivered on-board vessel.

Title : Emergency Valve from 2ton Prov Crane Comments : -x2 new Ball Valves were replaced -x1 new spring inserted Units painted with x1 layer of marine grade primer and delivered on-board vessel.

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5. Documents

5.1. Drawings n/a

5.2. Test Reports

n/a

5.3. Certificates n/a

End of Document