Unic URW295CR Manuel utilisateur

MAINTENANCE MANUAL
FURUKAWA UNIC CORPORATION
URW295CR

1. Dimensionsandweightofcranebody (1−1)
2. Descriptionofcarrierequipment (2−1)
3. Descriptionofcraneequipment (3−1)
4. Majorspecifications (4−1)
5. RatedRoadChart (5−1)
6. Attention
1 Inspectionbeforecraneoperation (6−1)
2 Emergencystopswitch
3 Shock-lessfunction (6−2)
4 Interlockingbalancecontrolfunction
7. Modechange
1 Manualmode (7−1)
2 Radiocontrolmode
3 Switchingofmodeindicator
4 Switchingof"shockless"function (7−2)
5 Switchingof low-temperatureoperationmode
6 Resettingofinterlockingbalancecontrol (7−3)
7 Switchingofoutriggerradiocontorolmode
8 Methodofenginestartandstopthatusesradiocontroller (7−4)
8. Controlbox
1 Internalviewofcontrolbox (8−1)
2 Modeindicatorlightingwhenitisinnormaloperation (8−2)
3 Modeindicatorblinkingwhenitisinwrongoperation (8−3)
4 Modeindicationofeachoperation
5 Errorindication (8−4〜5)
6 Zeropointadjustment (8−6)
(8−7〜8)
(8−9)
(8−10)
(8−11)
11Howtocorrectstore ofhook (8−12)
12Howtocorrectreleaseofhook (8−13)
13PWMvaluecorrectionprocedure (8−14)
14 Voicemessagelist (8−15)
10Howtocorrectenginespeed
Contents
7 Zeropointadjustmentprocedureswhenspool,
differentialtransformer,oracceleratorunithasbeenreplaced
8 Modeindicationwhenzeropointadjustmenthasbeeninfailure
9 Howtocorrectcraneoperationspeed

9. Controlvalve
1 MRV-500controlvalve (9−1)
2 Mainreliefvalve (9−2)
3 Reliefvalveforstoringhook (9−3)
4 Pressurereducingvalve (9−4)
5 Backpressurevalve (9−5)
6 Pressureregulatorvalve (9−6)
7 Valvebody(D,H,T,S) (9−7)
8 Valvebody(Outrigger) (9−8)
9 O-ringfittedonjointingsurfaceofvalvebody (9−9)
10Acceleratorcylinder (9−10)
11Spoolassembly(typesofD,H,T,S) (9−11)
10. Oilflowinthein-outbody
1 Whennooperationiscarriedout (10−1)
2 Whencraneisbeingoperated (10−2)
3 Whenunloading (10−3)
(10−4)
(10−5)
(10−6)
(10−7)
8 Descriptionofaccelerationcylinderfunction (10−8)
11. HydraulicCircuit
1 HydraulicSystem (11−1)
2 HydraulicCircuitDiagram(controlvalve) (11−2)
3 Hydrauliccircuitdiagram (11−3)
12. Piping
1 Pipingofcontrolvalveforrunning (12−1)
2 Controlvalvepipingforcrane (12−2)
3 Outorigachangevalvepiping (12−3)
4 Constructionofswiveljointandpositionofhouses (12−4〜5)
5 PipingofColumn (12−6)
13. Boom(5-sectionboom)
(1)Simultaneoustelescopingofboom4andboom5 (13−1)
(2)Boom4,5frontsidesectionindetail (13−2)
(3)Boom3,4rearsidesectionindetail (13−3)
(4)Installationproceduresforslideplateandguide (13−4)
4 Whenhookisbeingwoundupbyhookstoringoperation
5 Whenhookstoringrelief valveisbeingfunctionedbyhookstoringoperation
6 Whenboomup,hookup,boomretraction,andslewingC.W.arefunctioning
7 Whenboomdown,hookdown,boomext,andslewingC.C.W.arefunctioning

14. Telescopingcylinder
1 5-SectionBoom(TripleCylinder)Operation
(1)WhenTelescopingCylinder1extends (14−1)
(2)WhenTelescopingCylinder1retracts (14−2)
(3)WhenTelescopingCylinder2extends (14−3)
(4)WhenTelescopingCylinder2retracts (14−4)
(5)WhenTelescopingCylinder3extends (14−5)
(6)WhenTelescopingCylinder3retracts (14−6)
(14−7)
2 FunctionandWorkingofCushionSeal
(1)FlowofPressureOilWhenRetracting (14−8)
(2)FlowofPressureOilWhenExtending (14−9)
3 CauseofTroublesandMeasurestobetaken (14−10〜11)
15. Derrickcylinder
1 Flowofoil,whenlowering (15−1)
2 Flowofoil,whenraising (15−2)
16. Howtopunch (16−1)
(16−2〜3)
17. Hoistwinch (17−1)
2 Cautiontobetakenwhenreassemblinghoistwinch (17−2)
3 CauseofTroublesandMeasurestobeTaken(Hoistwinch) (17−3)
18. Hook (18−1)
19. Slewing
1 Constructionofslewingreductiongear (19−1)
(19−2)
3 Slewingreductiongeardisassemblyprocedures (19−3〜5)
20. Turntable
1 TurntableMountingProcedures (20−1)
(20−2)
21. Column (21−1)
22. Slipring
1 Constructionofslipringanditsfittingposition (22−1)
Telescoping/Derrickcylindermeasurestopreventpistonfrombeing
loosened
1 Tighteningtorqueforboltsfasteningcolumnandtighteningorder
1 ConstructionofHoistWinchandbrakeshoeadjustingprocedure
2 Positionofsoftzone,tighteningsequenceofboltsandtighteningtorque
(7)AdjustingProceduresforSelectorValvewithAdjustingBolt
2 ConstructiontobetakenwhenreassemblingSlewingreductiongear

23. Over windingalarm
1 Functionofoverwindingalarmandproceduresforoperation (23−1)
2 Boomtopindetail (23−2)
3 Illustratedwiringdiagram,overwindingalarm (23−3)
24. Electriccircuit
1 Systemstructure (24−1)
2 Electriccircuitdiagram (24−2,3)
3 Generalview (24−4〜8)
25. Structureofemergencystopswitchdisassembledcondition (25−1)
26. Correspondenceandcheckmethodattrouble
1 Emergencymeasureswhencranewillnotfunctionatall (26−1)
2 Howtocontroloutriggerswheninanemergency (26−2)
(26−3〜4)
4 Inspectionofderrickcylinder (26−5)
5 Insupectionprocedureswhencylindersinke (26−6)
6 Proceduresforcheckingoutriggersforsinking (26−7)
27. Boomlengthdetector
1 Howtoinstallanddetachboomlengthdetector (27−1)
(27−2〜4)
28. MentenanceAndInspectionOfCarrier (28−1〜3)
29. MaintenanceAndInspectionOfCrane (29−1〜4)
30. Refuelingresin (30−1〜3)
31. Listofrecommendedlubricant (31−1〜2)
3 Howtojudgedifferentialtransformerforbreakorshort-circuitofcoil
2 Howtoreplacemaincordforboomlengthdetectorandpotentiometer

1.Dimensions and weight of crane body
The total length 2690
mm
Tread length
1050
mm
The total height
1375
mm
All width 600mm
(1−1)
Total weight(approx.) 1850kg

2 Descriptionofcarrierequipment
18
29
310
411
512
613
714
Acceleratorlever Locklever
Crawlingmotor Hourmeter
Crawlinglever Chokeknob
Idleroller Hydraulicoiltank
Truckroller Staterswitch
Rubbercrawler Hornswitch
Wheelsprocket Fueltank
(2−1)

3 Descriptionofcraneequipment
112
213
314
415
516
617
7
818
9 19 Anti-rolloverdevice
10 (onlycraneequippedwithdevice)(Option)
11 20
Boom
Column
Frame
Hoistwinch
Craneoperatinglevers
Outriggercontrollevers
Hook
Slewingdevice
Derrickcylinder
Telescopingcylinder
Outrigger
Outriggerselectionswitch
Over-windingalarm
Loadmeter
Warninghorn
Wirerope
Level
Automaticstopforleavingminimumwirerope
Loadindicator
(Withwireroperetainingroller)(Option)
Option
(3−1)

4 Major specifications
2.93ton×1.4m (With outriggers extended fully)
Maximum lift above groud(Hook) Approx 8.8m
Boom to be extended to: 2.53m~4.075m~5.61m~7.13m~8.65m
Maximum working radius 8.41m
40m/min (At 4th layer on the drum)
Hoisting speed of hook 10m/min (At 4th layer on the drum, with 4-part line hooking)
Extending speed of boom 6.12m/20sec
Raising speed of boom 0°~78℃/11sec
Slewing speed 1.5 rpm
Slewing range 360° (Continuous)
Construction IWRC 6×WS (26) Class B (Breaking load: 43.2kN)
Diameter1×length 8mm×54.0m
Outrigger 2-section for bend and 3-section
Hydraulic Rated pressure Crane:20.6MPa(210kgf/c㎡)、Crawl:21.6MPa(220kgf/c㎡)
pump Rated discharge Approx.38ℓ/min
Rated rotation Approx.2000rpm
Hydraulic oil tank capacity 27ℓ
Equipment and construction
Boom telescoping Boom:5-section,Hexagonal box beam
Telescoped by direct pushing of hydraulic cylinder and by wire rope
Boom derricking Direct pushing by hydraulic cylinder(With hydraulic automatic locking device)
Hoisting Hydraulic motor Axial plunger type
Reduction gears Spur-gear reduction
Brake Automatic mechanical brake
Slewing Hydraulic motor Trochoid type(With hydraulic automatic locking device)
Reduction gears Worm-gear+Spur-gear reduction(Supported by ball bearings)
Brake Worm self-lock
Hydraulic pump Variable delivery piston pump
Hooking capacity 2.9t Number of slinging rope:4
Safety device Hydraulic automatic lock
Automatic stop for overwinding/Overwinding alarm/Load indicator
Load indicator(With angle meter)/Level/Alarm buzzer
Hook safety latch
Interlock for crane-crawl lever and outriggers
Weight Approx.1850kg
Crawling device
Crawling Endless rubber crawler
Crawler 180×40×72FR
Length of ground contact 1050mm
Pressure of ground contact 48.0kPa (0.49kgf/c㎡)
Crawling speed Forward/Backward:0~2.3Km/h
Hill-climbing ability 20°
Engine Rated output 9.6kW/2000rpm (13PS/2000rpm)
Crawling Independently driven by hydraulic power
Parking brake Disc brake with hydraulic motor built-in
Starting engine Electric starter
Fuel tank Capacity:7liters
(With hydraulic automatic locking device)(2nd&3rd sections:sequential
actuation,4th&5th sections:simultaneous actuation)
extension.Double acting hydraulic cylinders
with pilot-operated check valves,direct pushing type.
Major specifications (Speed,indicated in the table below is at oil temperature range of 45~
55℃
,
o
p
eratin
g
with noload
,
and at rated
p
um
p
dischar
g
e.
)
Crane capacity(maximum lifting load)
Speed of winding-up(Rope speed)
Hoisting
rope
(4-1)

5.RatedRoadChart
Boomsection 1・1+2
WorkingRadius (m) 1.0 1.4 1.5 1.8 2.0 2.5 3.0 3.5 3.835
RatidRoad 2.9 2.9 2.65 2.25 2.05 1.65 1.3 1.0 0.9
(t) 2.0 2.0 2.0 1.45 1.1 0.65 0.49 0.35 0.25
Boomsection 1+2+3
WorkingRadius (m) 2.2 2.5 2.9 3.0 3.5 4.0 4.5 5.0 5.37
RatidRoad 1.35 1.35 1.35 1.25 1.0 0.8 0.65 0.52 0.43
(t) 0.8 0.65 0.53 0.5 0.38 0.28 0.22 0.16 0.12
Boomsection 1+2+3+4
WorkingRadius (m) 3.4 3.8 4.0 4.5 5.0 5.5 6.0 6.5 6.89
RatidRoad 0.85 0.85 0.75 0.6 0.5 0.42 0.36 0.32 0.27
(t) 0.42 0.34 0.3 0.25 0.19 0.14 0.1 0.08 0.06
Boomsection 1+2+3+4+5
WorkingRadius (m) 3.8 4.1 4.5 5.0 5.5 6.0 6.5 7.0 8.00 8.41
RatidRoad 0.55 0.55 0.45 0.37 0.31 0.27 0.23 0.2 0.15 0.13
(t) 0.35 0.29 0.25 0.2 0.16 0.13 0.1 0.07 0.04 0.03
Caution
●Howboom-sectionsareextended
Boom:1
Allboomsectionsareretracted.
Boom:1+2or2
Boomsection(2)onlyisextended.
Boom:1+2+3or3
Boomsections(2)and(3)areextended.
Boom:1+2+3+4or4
Boomsection(4)isextendedtothemar
k
Boom:1+2+3+4+5or5
Boom-section(2),(3),(4),and(5)arefullyextended.
OutriggerMaxEXT.
OutriggerNotMaxEXT.
OutriggerMaxEXT.
OutriggerNotMaxEXT.
OutriggerMaxEXT.
OutriggerNotMaxEXT.
OutriggerMaxEXT.
OutriggerNotMaxEXT.
■Theratedloadisperformancewhenthecraneisplacedlevelandisbasedonanactualoperatingradius
includingboomdeflectionunderload.Theratedloadisalsobasedonstrengthandstabilityofthecrane.
■Maximumextensionofanoutriggerisaconditioninwhichtheinnerboxisextendedtothemaximumextension
positionandaswinglockpinoftheoutriggerarmisinsertedintothenormalposition.Inotherconditionsthan
theabove,operatewithperformanceofnotmaximumextension.
■Ifanyoneofthefouroutriggersisnotfullyextended,operatewithperformanceofnotmaximumextension.
■Improperset-upoftheoutriggersmaycausethecranetoturnover.Placetheoutriggersonafirmandlevel
surfacewithmaximumextension.Makesure,then,thatlockpinsaresecurelyinserted.
Boom1 Boom4
Boom5
Boom3Boom2
Boom1 Boom2
Boom1 Boom2 Boom
3
Boom1 Boom2 Boom3 Boom
5
Boom1 Boom2 Boom3 Boom
4
Boom5
(5−1)
Table des matières
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