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                                    UNITOR AG-PRO 4 B 

 
 
SPECIFICATIONS

 

GRINDING WHEEL ----------------- 4”                           

FREE SPEED --------------- 13,600 RPM 

AIR PRESSURE --------------- 90 PSI                           

HOSE SIZE -------------------------- 3/8” ID 

AIR INLET -------------- 1/4” PT(NPT) 

 

 

REF 

NO. 

PARTS NO. 

DESCRIPTION 

Q‘TY

REF 

NO.

PARTS NO.

DESCRIPTION 

Q‘TY 

752281   HANDLE (LEVER TYPE) 

1

48

752313

SNAP RING   

1

752282   VALVE BUSHING  

1

49

752314

BALL BEARING (606)

1

752283    AIR INLET BUSHING  

1

50

752315

BALL BEARING (629 Z)

2

752284   FILTER  

1

51

752316

BALL BEARING (6202 Z)

1

752285    VALVE BODY CONNECTOR

1

52

752317

O-RING (52) 

1

752286    VALVE BODY NUT 

1

53

752318

FLAT RING (d22×D32×W4)

1

752287   SAFETY PIN  

1

54

752319

SIDE HANDLE 

1

752288   VALVE LEVER  

1

55

752320

FLAT WASHER (M8) 

1

752289   VALVE  

1

56

752321

SPRING WASHER (M8) 

1

10 

752290   ROIL PIN (3.5×20)  

1

57

752322

OUSTER SNEP RING (S-6)

1

11 

752291   CONE SPRING (10×16×16)

1

59

752323

EXHAUST STACK 

1

12 

752292    INNER SNAP RING 

1

61

752324

ALLEN HEAD SCREW (M5×35)

1

13 

752293   O-RING (13)

 

1

66

752325

O-RING (66) 

1

14 

752294   O-RING (14)

 

2

67

752326

GOVERNOR VALVE  

1

15 

752295   SPRING

 

1

68

752327

GOVERNOR CAGE  

1

29 

752296   HOUSING 

1

69

752328

GOVERNOR SPINDLE  

1

30 

752297    REAR PLATE SPACER 

1

70

752329

GOVERNOR WEIGHT  

1

31 

752298   REAR PLATE 

1

71

752330

SPRING PIN (Ø3×18)  

1

32 

752299   CYLINDER 

1

72

752331

ADJUSTING SPACER (d8×D12×t)

1

33 

752300   ROTOR

1

73

752332

PIN (Ø2.5×5)  

1

34 

752301   BLADE  

4

74

752333

SPACER (d8.6×D12×W1.5)

1

35 

752302   FRONT PLATE 

1

75

752334

4” SERIES SPRING  

1

36 

752303   DRIVING GEAR (36)  

1

79

752336

WHEEL GUARD 

1

37 

752304   DRIVING GEAR (37)  

1

80

HEX. BOLT

(not supplied as spare)

 

1

38 

752305    CASING REAR COVER

1

81

HEX. NUT

(not supplied as spare)

 

1

39 

752306    CASING FRONT COVER 

1

82

WASHER

(not supplied as spare)

 

1

40 

752307   HANDLE ADAPTOR (M8) 1

102

752344

SPANNER 102 

1

41 

752308    ALLEN HEAD PLUG (1/8” PT)

1

109

756944

SPANNER 109 

1

42 

752309   ROLL PIN (Ø3×10) 1

110

756945

4” WHEEL SPINDLE (3/8”X24 UNF)

1

43 

752310   KEY (3×8) 1

111

756946

WHEEL HOLDER FLANGE

1

44 

752311   SPACER (d31×D35×W0.5)

1

112

756947

WHEEL NUT FLANGE  

1

46 

752312   ADJUSTING SPACER  

2

 402 75690

1

 

 

 
To get maximum performance and life of your tool, replace the whole set of parts included in the Spare part kits: 

 

 

Tune-up kit

  

 

 

722801

 

  Throttle valve overhaul kit

 

722819

 

  Governor overhaul kit

  

722827

 

    Bevel gear overhaul kit

   

722835

 

Revision date 05/2008

Summary of Contents for AG-PRO 4

Page 1: ...Instruction manual spare parts list AG PRO 7 AG PRO 5 AG PRO 4 AG PRO SERIES AIR DRIVEN ANGLE GRINDERS Revision date 05 2008...

Page 2: ...tool from air supply before changing tools or attachments servicing and during nonoperation 7 Always wear safety glasses during operation 8 Do not wear loose fitting clothing scarves or neckties Loos...

Page 3: ...using 12 7 mm 1 2 I D fittings with 9 525 mm 3 8 NPT threads are recommended Most compressors are shipped with a short 6 35 mm 1 4 I D hose For proper performance and more convenience use a 9 525 mm...

Page 4: ...rinding wheel 1 Check that maximum operation speed of the abrasive product converted to r min is equal to or greater than the rated speed of the spindle 2 Ensure that the wheel dimensions are compatib...

Page 5: ...ord the weight 2 Be sure to wear foot protection to prevent the risk of impact due to the drop of tool 3 Maintenance Instruction 1 Lubrication Proper lubrication is the owner s responsibility Failure...

Page 6: ...ating 1 Disconnect the grinder from the air supply 2 Remove the slotted screw or Allen head screw from the oil porthole on the right side of the tool that has OIL stamped below the hole for 3 Put thre...

Page 7: ...olumes of air may require a hose with an I D of 12 7 mm 1 2 or larger depending on the total length of the hose 5 2 Do not use a multiple number of hoses connected together with quick connect fittings...

Page 8: ...752296 HOUSING 1 69 752328 GOVERNOR SPINDLE 1 30 752297 REAR PLATE SPACER 1 70 752329 GOVERNOR WEIGHT 1 31 752298 REAR PLATE 1 71 752330 SPRING PIN 3 18 1 32 752299 CYLINDER 1 72 752331 ADJUSTING SPA...

Page 9: ...UNITOR AG PRO 4 B Revision date 05 2008...

Page 10: ...G 1 32 752299 CYLINDER 1 90 752347 WHEEL HOLDER FLANGE 1 33 752300 ROTOR 1 91 752348 WHEEL GUARD 1 34 752301 BLADE 4 92 BOLT not supplied as spare 1 35 752302 FRONT PLATE 1 93 HEX NUT not supplied as...

Page 11: ...UNITOR AG PRO 5 Revision date 05 2008...

Page 12: ...HOLICO INSERT M12 1 1 32 752397 GOVERNOR CAGE 1 74 752432 OUTER SNAP RING S 7 1 33 752398 GOVERNOR WEIGHT 2 75 752433 BALL BEARING 6001ZZ 1 34 752399 ROLL PIN 3 20L 2 76 752434 BALL BEARING 6201ZZ 1...

Page 13: ...UNITOR AG PRO 7 Revision date 05 2008...

Page 14: ...ma Wa Tampa Texas City The Bronx Ny The Loop Valdez Vancouver Wa Venice West Palm Beach Westville Nj Wilmington Ca Wilmington De Houston Wilmington nc Yonkers Ny Yorktown Va Fray Bentos Jose Ignacio M...

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