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Page 37 

 

MODEL: DU-904 - Parts List 

 

 

NAMEPLATE 1 

41 

POWER CONNECTOR SOCKET 

80 

NUT 

BOLT 

42 

SCREW 

81 

BOLT 

MOTOR COVER 

43 

SWITCH CONNECTOR SOCKET 

82 

CROSS TYPE SHEET 

BEARING 

44 

SCREW 

83 

BOLT 

ROTOR 

45 

SWITCH CONNECTOR   

84 

CHAIN GUIDER 

AIR GUIDING IRON COVER 

46 

POWER CABLE SET 

85 

SNAP RING 

SNAP RING 

47 

GASKET 

86 

OIL SEAL 

BEARING 

48 

BEARING 

87 

THIRD SECTION GEAR 
SHAFT 

OIL SEAL 

49 

FIXING SPRING 

89 

OIL SEAL   

10 

BOLT 

50 

GEAR 

90 

BEARING   

11 

STATOR 

51 

FIXING SPRING 

91 

SNAP RING 

12 

SCREW 

52 

FIRST SECTION GEAR SHAFT 

92 

BEARING 

13 

MAIN BODY BASE 

53 

KEY 

93 

BEARING 

14 

CABLE 

54 

OIL SEAL   

94 

GASKET 

15 

BASE OF CARBON BRUSH 

55 

SCREW 

95 

GEAR RING 

16 

CARBON BRUSH 

55-1  BOLT 

96 

GEAR HOUSING 

17 

CARBON BRUSH COVER 

56 

WASHER 

97 

GEAR BRAKE SET 

18 

CARBON BRUSH SET 
PROTECTION   

57 

GEAR COVR 

98 

BRAKE PAWL SET 

19 

CARBON BRUSH SET 
PROTECTION   

58 

SCREW 

99 

BEARING 

20 

SCREW 

59 

NUT 

100 

OIL SEAL 

21 

BINDER OF CABLE 

60 

SCREW 

101 

GEAR 

22 

LANYARD CLIP 

61 

LEFT MAIN BODY SHEET 

102 

SNAP RING 

23 

TWIN-CIRCLE TYPE HOOK 

62 

FIX ROD OF MAIN BODY 

103 

SCREW 

24 

SCREW 

63 

MAIN BODY COVER 1 

104 

BEARING STOPPING SHEET 

25 

RESISTOR 

64 

MAIN BODY COVER 2 

105 

BEARING 

26 

SCREW 

65 

SNAP RING 

106 

GASKET 

27 

FIX PIN 

66 

BEARING 

107 

FIRST LAYER GEAR BOX 

28 

SCREW 

67 

CHAIN SHEAVE 

108 

BOLT 

29 

FIX PLATE 

68 

LOAD CHAIN 

109 

BOLT 

30 

REGULATOR W/ VARISTOR 

69 

NUT 

110 

NAMEPLATE 2 

31 

REGULATOR 

70 

SCREW 

111 

SWITCH WITHOUT CABLE 

32 

SCREW 

71 

CHAIN STOPPED BLOCK 

112 

CHAINBAG 

33 

ELECTRIC BOX COVER 

72 

UPPER HOOK 

113 

SWITCH CONTACTOR 

34 

SCREW 

73 

MAIN BODY COVER 3 

114 

SWITCH SET WITH CABLE 

35 

CAPACITOR 

74 

RIGHT MAIN BODY SHEET 

115 

BOLSTER PLATE 

36 

PLASTIC TUBE 

75 

SCREW 

116 

SCREW 

37 

CABLE HANGER 

76 

LIMIT SPRING 

117 

BUSHER 

38 

FIX PLATE 

77 

BOLT 

 

 

39 

SCREW 

78 

NUT 

 

 

40 

FUSE 

79 

LOWER HOOK SET 

 

 

Содержание DU903

Страница 1: ...Page 1...

Страница 2: ...acteristics 9 3 1 1 Usages 9 3 1 2 Features 9 3 2 Specifications 10 3 3 Overall dimensions 11 3 4Working space required and operating position 12 3 5 Main units and name 13 4 Pre use Preparation 14 4...

Страница 3: ...Observing these instructions helps to avoid danger to reduce repair costs and downtimes and to increase the reliability and life of the winch The instruction manual is to be supplemented by the respec...

Страница 4: ...s are tightened securely without loosening 10 Before operating the electric hoist check to see if the chain runs to the correct direction and the brake works normally 11 Do not allow any person approa...

Страница 5: ...ace a new one immediately and please note its original rated specification 7 After connecting power check the direction of motor rotation and the direction of hoist is correct or not 8 Please check wh...

Страница 6: ...examine and repair it 5 If abnormal temperature phenomenon happens during operation operator should stop the hoist immediately and then examine and repair it 6 Don t modify the original design of mec...

Страница 7: ...Page 7 2 2 All safety related elements ITEM DESCRIPTION 1 EMERGENCY STOP 2 FUSE 3 Chain Guide Spring 1 2 3...

Страница 8: ...requency and phase marked correctly YES 10 Is the machine earthed YES 11 Is there an independent earth copper plate equipped inside electric box YES 12 Is every function of control device regular YES...

Страница 9: ...reated for strength and durability the ball or needle bearings at all rotating points run in oil bath lubrication for a quieter smoother and cooler operation Loading sheave Provide smooth lifting redu...

Страница 10: ...idth mm 212 214 Height mm 535 675 Capacity kg 1000 2000 Standard Lift m Control Cable m 3 3 Lifting Speed m min 50HZ 4 60HZ 5 50HZ 2 60HZ 2 5 Chain mm 7 1x20 7 1x20 Safety Factor WLL x 1 25 Insulation...

Страница 11: ...Page 11 3 3 Overall dimensions MODEL Length Width Height DU 903 456mm 212mm 535mm DU 904 456mm 214mm 675mm...

Страница 12: ...Page 12 3 4Working space required and operating position FRONT OPERATOR TopView 1500mm 1500mm 1500mm 1500mm FRONT OPERATOR...

Страница 13: ...Page 13 3 5 Main units and name Item Part s name 1 Electric Department 2 Motor 3 Chain 7 1mm x 20mm 4 Lower Hook 5 Chain bag 6 Gear Box 7 Upper Hook 1 2 3 4 7 6 5...

Страница 14: ...nimpaired tools wire yarns waste etc 4 1 2 Electrical Check 1 Are all ground conductors connected 2 Are all cables connected 3 Is there any mechanical damage of electrical control operating and indica...

Страница 15: ...well lighting well ventilation clean environment dry and maintains a normal temperature The winch needs the following supplies Electric power single phase 220 240V 50Hz and 60Hz or base on previous de...

Страница 16: ...and Dismantle 5 1 Transport Always carry the winch with two hands to prevent a strike Below table shows net weight and gross weight for each model of winch MODEL NET WEIGHT GROSSWEIGHT DU 903 23 KGS...

Страница 17: ...your power supply 2 Make sure all supporting structures and attaching devices have the strength to safety absorb the weight of the intended loads If in doubt consult a qualified structural Power cable...

Страница 18: ...b the chain hoist lifting capacity 3 Attach the chain bag to the chain bag ring 4 Put the chain into the chain bag and make sure there are no twists or knots in the chain in the chain bag 5 Attach the...

Страница 19: ...or using one or more slings 10 Run the chain up until the load chain just taut 11 Check all lifting and slinging connections and lift the load until it is freely floating of the ground 12 Visually ch...

Страница 20: ...e from the area before you start lowering the load Do not allow any people to stand under the moving load 5 Make sure you have a full visual view on the complete travel path of the load 6 Bring the lo...

Страница 21: ...ns of the load and working frequency During long operating periods make sure to use the hoist within its continuous rating Continuous Rating means the amount of allowable usage within one hour which i...

Страница 22: ...e is prohibited from operating machine Preparation before Working3 Working Me Check all safety and environmental conditions Connect the main power source and ensure grounding Do not lift loads exceedi...

Страница 23: ...lower the load and remove the excess load 4 Do not allow the load to swing or twist while lifting 5 Do not allow the load and or attachments to bear against the hook latch and or hook tip Apply load t...

Страница 24: ...erating conditions Two classes of inspection frequent and periodic must be performed Frequent Inspections These inspections are visual examinations by the operator or other designated personnel Record...

Страница 25: ...of wear or damaged links e Load chain for proper reeving and twists Minimum Periodic Inspections TYPE OF SERVICE ITEM Normal Heavy Severe a All items in minimum frequent inspections b External eviden...

Страница 26: ...e tip of the hook and allow the latch to spring back to the tip when released If the latch does not operate properly it should be replaced To Measure opening depress latch against hook body as show Re...

Страница 27: ...and let the chain hang dripping for 24 hours before putting in the hoist Note In the entertainment industry chain wear in general is only very limited and often even impossible to measure after 10 yea...

Страница 28: ...r up position run the hook to its up limit 2 Remove the load block assembly from the old chain 3 Make a C link attach the new chain to the load end of the old chain 4 Carefully jog the UP button and r...

Страница 29: ...end 8 Attached the chain stop and load block assembly Be sure there are no twists in the chain CHAIN END STOP The end stop on the dead end chain should be mounted on the 11th link No less than 11 lin...

Страница 30: ...engineered for low maintenance and also serve as an overload protection Hook a load of 1 25 times the nominal load into the hoist SIGNS OF INADEQUATE ELECTRICAL POWER The hoist must be supplied with...

Страница 31: ...wiring for relay rectifier 2 Hook does not stop promptly A Chain hoist overloaded A Reduce load within rated capacity of chain hoist B Brake not holding B Check brake and it may be necessary to repla...

Страница 32: ...o within rated capacity of chain hoist B Low voltage B Determine cause of low voltage and bring up to within plus or minus 10 of the voltage specified on the motor Measure voltage at the lifting motor...

Страница 33: ...e brake assembly B Low voltage B Determine cause of low voltage and bring up to within plus or minus 10 of the voltage specified on the motor Measure voltage at the lifting motor in terminal block pow...

Страница 34: ...Page 34 8 Drawings and Parts List 8 1 Assembly drawings and part list MODEL DU 903 Assembly Drawing...

Страница 35: ...N 65 SNAP RING 112 CHAINBAG 19 CARBON BRUSH SET PROTECTION 66 BEARING 112 1 BOLT 20 SCREW 67 CHAIN SHEAVE 112 2 NUT 21 BINDER OF CABLE 68 LOAD CHAIN 113 SWITCH CONTACTOR 22 LANYARD CLIP 69 NUT 114 SWI...

Страница 36: ...Page 36 MODEL DU 904 Assembly Drawing...

Страница 37: ...N 57 GEAR COVR 98 BRAKE PAWL SET 19 CARBON BRUSH SET PROTECTION 58 SCREW 99 BEARING 20 SCREW 59 NUT 100 OIL SEAL 21 BINDER OF CABLE 60 SCREW 101 GEAR 22 LANYARD CLIP 61 LEFT MAIN BODY SHEET 102 SNAP R...

Страница 38: ...Page 38 8 2 Electrical system drawings and part list MODEL DU 903 DU 904 Electrical System Drawings...

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