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2847-93120(111)

G451/G4500

G5000

CHAIN SAW

Nov. 2001

NOTE : 

1. Use KOMATSU ZENOAH genuine parts specified in the parts list for repair and/or replacement. 

2. KOMATSU ZENOAH does not warrant the machines, those which have been damaged by the use

of any parts other than those specified by the company.

3. When placing orders of parts for repair and/or replacement, check if the model name and the serial

number are suitable to those specified in the parts list, then use parts number described in the

parts list. 

4. The contents described in the parts list may change due to improvement. 

5. The parts for the machine shall be supplied within ten (10) years after the machine is discontinued.

[It is possible that some specific parts may be subject to change of their delivery term and list price

within the limit of ten (10) years after the machine is discontinued. And it is also possible that some

parts may be available even after the limit of ten (10) years.] 

APPLICABLE  SERIAL  NUMBERS : 100101  and  up

Summary of Contents for G451/G4500

Page 1: ...ial number are suitable to those specified in the parts list then use parts number described in the parts list 4 The contents described in the parts list may change due to improvement 5 The parts for...

Page 2: ...Fig 1 POWER UNIT G451 G4500 G5000...

Page 3: ...8 2670 41510 Washer 2 39 2880 42001 Crankshaft Complete 1 40 1000 43240 Key 1 41 2810 06012 Gasket Kit 1 Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2880 12111 Cylinder 1 45 2 2880 14111 Inlet Pipe 1...

Page 4: ...Fig 2 IGNITION STARTING G451 G4500 G5000...

Page 5: ...0 14320 Screw 4 44 2811 75132 Label Recoil 1 45 2881 98611 Snow protector 1 OP Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2670 71101 Rotor assembly 1 2 1850 75220 Ratchet 2 3 2670 71130 Spring 2 4 0...

Page 6: ...list of G451 recoil starter key part number discription Q ty unit A 2880 75002 starter assy 1 B 2810 75110 case 1 C 2810 75120 guide 1 D 2810 75150 boss 1 E 2670 75211 reel 1 F 3317 75300 spring comp...

Page 7: ...Fig 3 HANDLE G451 G4500 G5000...

Page 8: ...50 35170 Bolt 2 29 2880 35250 Cap 2 Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2880 32101 Left handle complete 1 2 2671 32210 Screw M5x19 BT 4 3 2880 32250 Bracket 1 4 2670 14130 Screw M5x10 1 5 288...

Page 9: ...Fig 4 FUELING SYSTEMS G451 G4500 G5000...

Page 10: ...1 33 T2041 75810 Label 1 34 2811 98501 Air cleaner complete 1 OP Felt Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1B 2880 31101 Cylinder cover 1 2 2880 31120 Nut 1 3 2670 14320 Screw M5x14 5 4 2854 31...

Page 11: ...Fig 5 OIL SYSTEM CLUTCH G451 G4500 G5000...

Page 12: ...Needle bearing 12x15x14 1 22 2880 51110 Clutch drum 1 23 3350 51121 Rim 325P 1 Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2841 31801 Oil cap assembly 1 2 2841 31820 Gasket cap 1 3 2670 23101 Oil pi...

Page 13: ...Fig 6 CARBURETOR G451 G4500 G5000...

Page 14: ...80 81470 Screw valve 2 33 2660 81510 Pin 1 34 2610 81520 O ring 1 35 2810 81350 Screw 1 36 3304 81910 Gasket Kit 1 Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2810 81001 Carburetor assembly 1 WT 281A...

Page 15: ...Fig 7 BREAKING SYSTEMS G451 G4500 G5000...

Page 16: ...Brake spring 1 34 2880 54650 Return spring 1 35 2811 53123 Label Chain cover 1 Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2670 25310 Bumper 1 2 2670 14320 Screw M5x14 2 3 2810 25421 Plate 1 4 2670...

Page 17: ...Fig 8 GUIDE BAR SAW CHAIN TOOLS G451 G4500 G5000...

Page 18: ...ssembly 1 OP 39 2847 93110 Owner s manual 1 Q TY Key PART NUMBER DESCRIPTION NOTE UNIT 1 2974 52111 Hard nose bar 18 1 G 058 2 3646 52113 Sprocket nose bar 18 1 G 058 3 3646 52210 Chain 18 21BP 72E 1...

Page 19: ...1 9 Minamidai Kawagoe Saitama 350 1192 Japan PRINTED IN JAPAN PRINTED ON RECYCLED PAPER IMPRIM SUR PAPIER RECYCL GEDRUCKT AUF RECYCLING PAPIER STAMPATO SU CARTA RICICLATA IMPRESO EN PAPEL RECICLADO...

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