Zenoah G3800 User Manual

T2100-93210 (503)

CHAIN SAW

Dec. 2004

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

G3800

PARTS LIST

(for Australia)

Fig. 1 POWER UNIT

G3800

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

47 848C306731 Pipe in comp. 1

48 T2100-23200 Filter comp. 1

49 2860-51111 Clutch drum 1

50 3310-51310 Bearing 1

51 848C405121 Clutch ass’y 1

52 2870-51230 • Spring 1

54 2850-51211 Plate 1

56 2841-55103 Oil pump ass’y 1

57 2841-55112 • Oil pump 1

58 2850-55121 • Worm 1

59 T2100-55610 Cover, pump 1

60 2670-55410 Screw 4

61 2850-55211 Washer 1

63 T2100-71100 Roter comp. 1

64 1650-43230 Nut 1

65 T2100-71300 Coil assy 1

66 5500-72130 • Grommet 1

67 2850-72110 • Cap 1

68 1400-72121 • Spring 1

69 T2100-71510 • Cord, switch 1

70 2670-55410 Screw 2

71 3699-90032-10 Spark plug (RCJ-7Y) 1

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

1 2898-12111 Cylinder 1

2 2867-14110 Insulator 1

3 2850-14123 Gasket, inlet 1

4 3330-14121 Gasket, carb 1

5 2850-14212 Gasket, cylinder 1

6 4820-13180 Bolt 4

7 T2100-15112 Muffler 1

8 T2100-15311 Stay 1

9 T2100-15210 Gasket, muffler 1

10 T2100-15220 Bolt, muffler 2

11 2850-15230 Nut, muffler M5 2

12 2670-14320 Screw 1

13 848C402101 Crankcase ass’y 1

14 84889C3200 • Bearing 2

15 04065-03212 • Snap ring 1

16 2169-21210 • Seal 1

17 8488AC3210 • Oil seal 1

18 2616-21230 • Stud 2

19 T2100-21310 • Gasket, case 1

20 4820-21310 Bolt 4

21 T2100-21400 Pipe out comp. 1

22 848C3066F1 Chain catcher 1

23 2850-25220 Stopper 1

24 T2100-53220 Nut tensioner 1

25 T2100-53210 Screw 1

26 2850-25411 Plate (A) 1

27 2670-25430 Screw 1

28 T2100-41110 Piston 1

29 T2100-41210 Ring 1

30 2850-41310 Piston pin 1

31 1300-41320 Snap ring 2

32 T2100-41410 Bearing 1

33 2850-41510 Washer 2

34 T2100-42000 Shaft comp. 1

35 T2100-31100 Cover comp. 1

36 2856-31120 • Cap 1

37 2810-83410 • Grommet 1

38 8488251911 Screw 4

39 T2100-31610 Label 1

40 2850-82411 Rod 1

41 T2100-82420 Grommet, choke 1

42 2867-82320 Grommet 1

43 T2100-82520 Grommet, throttle 1

44 2850-98300 Air cleaner comp. 1

45 2850-83303 Cleaner cover comp. 1

46 2841-83320 • Knob 1

Fig. 1 POWER UNIT

G3800

Fig. 2 POWER UNIT

G3800

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

47 2851-54270 • Spring 1

48 3330-75411 • Washer 1

49 3310-53331 • Nut (B) 1

50 2850-54626 • Spring cover 1

51 2670-54630 • Screw 4

52 2851-54301 • Brake lever comp. 1

53 2851-54350 • Roller 1

54 2670-54411 • Slide arm 1

55 2851-54510 • Brake band 1

56 3356-24140 • Roller 1

57 2670-54610 • Brake spring 1

58 T2100-53150 Label 1

59 3350-53410 Nut 2

60 T2100-75610 Fan cover 1

61 T2100-75000 Starter ass’y 1

62 T2100-75210 • Reel 1

63 2850-75301 • Spring 1

64 3317-75410 • Rope 1

65 3330-75421 • Knob 1

66 1850-75151 • Screw 1

67 8488251911 Screw 3

68 T2100-75130 Label 1

69 T2100-35150 Spring front 1

70 2670-14320 Screw 1

71 848C408100 Carburetor ass’y 1

72 2850-82114 Manifold 1

73 2867-82210 Bolt 2

74 8488251911 Screw 1

75 T2102-35160 Plate 1

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

1 T2100-32110 Left handle 1

2 8488252711 Screw 4

3 T2100-33000 Right handle ass’y 1

4 2850-33313 • Throttle lever 1

5 3356-33321 • Throttle spring 1

6 04025-00524 • Spring pin 1

7 2670-34401 Tank cap ass’y 1

8 2670-34430 • Gasket 1

9 2877-31800 Cap ass’y 1

10 2841-31820 • Gasket 1

11 2850-34111 Grip cover 1

12 848C3033E3 Arm 1

13 8488252711 Screw 1

14 2850-74102 Switch ass’y 1

16 T2100-74210 Cord 1

17 2850-34501 Breather ass’y 1

18 3317-85120 Grommet 1

19 T2100-82512 Throttle rod 1

20 T2100-31500 Pipe comp. 1

21 T2100-34301 Pipe ass’y 1

22 2850-34311 • Fuel pipe 1

23 2851-34321 • Grommet 1

24 1850-85300 • Filter ass’y 1

25 1260-85460 • Clip 1

26 2851-33510 Cap 1

27 T2100-25111 Engine case 1

28 2670-14320 Screw 4

29 T2100-35200 Damper comp. 1

30 2616-35141 Damper 1

31 8488251601 Screw 2

32 2856-35180 Cap 1

33 2880-35250 Cap 1

34 8488251911 Screw 1

35 T2100-35150 Spring rear 1

36 8488251901 Screw 2

37 848C405403 Chain brake ass’y 1

38 2850-53250 • Plate 1

39 2850-54111 • Front guard 1

40 2850-54120 • Return spring 1

41 2850-54130 • Screw 1

42 2850-54140 • Spacer 1

43 2850-54211 • Spacer 1

44 848C605423 • Weight 1

45 2872-54230 • Spring 1

46 2851-54260 • Stopper plate 1

Fig. 2 POWER UNIT

G3800

Fig. 3 CARBURETOR COMPONENTS & ACCESSORIES

G3800

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

21 –––––––––– • • LEVER –

22 –––––––––– • • SCREW –

23 2850-81190 • SCREW 1

24 2841-81450 • VALVE, choke 1

25 2850-81430 • BUSH 1

26 2850-81350 • SPRING, choke 1

27 2850-81461 • SHAFT, choke 1

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

1 848C408100 CARBURETOR ASS'Y

2 2850-81120 • PUMP COVER 1

3 3310-81130 • SCREW 1

4 3310-81280 • COVER, metering 1

5 1480-81420 • PLUG 1

6 3350-81380 • SPRING 1

7 2630-81330 • SCREW 1

8 2880-81470 • SCREW 3

9 3356-81340 • VALVE 1

10 2670-81410 • SPRING 1

11 T2108-81370 • SHAFT ASS'Y 1

12 2670-81440 • LEVER 1

13 1148-81390 • RING 1

14 3310-81351 • SCREW 4

15 T2100-06030 • REBUILT KIT 1

16 T2100-06020 • • GASKET KIT 1

17 –––––––––– • • SCREEN –

18 –––––––––– • • VALVE, inlet –

19 –––––––––– • • SPRING –

20 –––––––––– • • PIN –

G3800

Fig. 4 ACCESSORIES

Q'TY

Key# PART NUMBER DESCRIPTION NOTE

/UNIT

2 3320-91140 Plug 13x19 1

3 2670-91150 Driver 1

4A 848CB24G23 Sprocket nose bar 14” 1

4B 3608-52112 Sprocket nose bar 16” 1

5A 2931-52210-50 Chain for 14” bar 1 (91VG-J52E)

5B 2932-52210-50 Chain for 16” bar 1 (91VG-J57E)

6A 3617-97110 Protector for 14” bar 1

6B 3637-97110 Protector for 16” bar 1

7 T2100-06010 Gasket kit 1 (OP)

8 T2100-06020 Gasket kit 1 (OP)

9 2670-96210 Wrench (for clutch) 1 (OP)

10 2670-96220 Stopper (for piston) 1 (OP)

11 2670-96240 Wrench (for clutch ASS’Y) 3 (OP)

12 3330-97310 Gauge (for air gap) 1 (OP)

13 2850-96410 Wrench (T20xT25xT27) 1 (OP)

14 2670-96510 Guide (for break spring) 1 (OP)

T2100-06030 Rebuild-kit 1 (OP)

1-9 Minamidai, Kawagoe, Saitama, 350-1192 Japan

PRINTED IN JAPAN

PRINTED ON RECYCLED PAPER
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