Zenoah G621AVS User Manual

2626-93122 (709)

G621AVS

CHAIN SAW

September 2007

NOTE :

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

2. 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 : 820954 and up

PARTS LIST

Fig.1 POWER UNIT

G621AVS

1 848C9712A0 CYLINDER 1
2 3356-12141 GROMMET 1
3 848C9014B3 GASKET, insulator 1
4 2618-14120 INSULATOR 1
5848C9014C2 GASKET, carburetor 1
6 2616-14211 GASKET, cylinder base 1
7 3310-12281 BOLT 4
8 2610-15111 MUFFLER 1

9 3356-15123 STAY 1
10 3356-15210 GASKET, muffler 1 K1
11 3356-15220 BOLT 2
12 2850-15230 NUT 2

848C902104 CRANKCASE ASSY 1 Incl. 13 thru 24

13 ✩ CRANKCASE MAG 1 ✩848C902104
14 ✩ CRANKCASE PTO 1 ✩848C902104
15 3356-21130 PIN 3
16 04065-03515 SNAP RING 1
17 2616-21250 RING 2
18 T4012-21240 BEARING 2
19 3350-21210 OIL SEAL, MAG 1
20 T1108-21220 OIL SEAL, PTO 1
21 2616-21230 STUD 2
22 3350-21250 SPRING PIN 1
23 3356-21270 PIN, brake arm 2
24 848C9021D2 GASKET, crankcase 1 K1
25 3310-12281 BOLT 6

3356-23100 OIL PIPE COMP. 1 Incl. 26 thru 30
26 3356-23110 PIPE, oil 1
27 07000-11008 O-RING 1
28 3310-57312 PIPE 1
29 3310-57412 WEIGHT 1
30 3310-57511 CLIP 2
31 3356-23211 PIPE, oil 1

3356-24101 BRAKE BAND COMP. 1 Incl. 32 thru 34
32 3356-24111 BAND, brake 1
33 3356-24120 ARM, brake 1
34 04025-00408 SPRING PIN 1
35 3356-24140 ROLLER 1
36 2622-24210 LEVER 1
37 848C925431 STOPPER COMP. 1

39 2622-24600 SPRING, brake 1
40 3356-24240 SPRING 1
41 0308-00060 SNAP RING 2
42 848C9254A1 GUARD 1
43 2670-14320 SCREW 1
44 3356-24412 COVER, brake 1
45 0263-60514 SCREW 2
46 3350-25111 SCREW, chain adjust 1
47 3350-25121 STOPPER, adjust screw 1
48 3320-21191 NUT (A) 1
49 01641-20508 WASHER 1
50 2616-25211 CATCHER, chain 1
51 2616-25230 SCREW 1
52 2623-25310 SPIKE 1
53 2616-25320 SCREW 2

3356-26100 CAP ASSY, oil tank 1 Incl. 54 thru 58
54 ✩ CAP, oil tank 1 ✩3356-26100
55 ✩ CHAIN, cap 1 ✩3356-26100
56 ✩ STOPPER 1 ✩3356-26100
57 ✩ SCREW 1 ✩3356-26100
58 3317-57220 GASKET 1
59 3330-23121 VALVE 1
60 2841-31410 SEAL, breather 1
61 3350-26230 CLIP 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

62 2626-31104 COVER COMP., cylinder 1 Incl. 62 thru 63
63 3356-31152 • GROMMET 1
64 3356-31120 CAP, cylinder cover 1

66 2627-31171 LABEL 1
67 3356-31212 SEAL, cylinder cover 1
68 0263-90514 SCREW 2
69 0263-90520 SCREW 1
70 2620-32100 FRONT HANDLE COMP. 1
71 8488251901 SCREW 4
72 2851-32180 PLATE 2

2622-33005 REAR HANDLE ASSY 1 Incl. 73 thru 82
73 2622-33105 REAR HANDLE COMP. 1
74 3350-33220 PLATE 1
75 3330-33250 STOPPER 1
76 3310-33262 SPRING 1
77 3310-33271 KNOB 1
78 2810-33280 DAMPER (A) 1
79 848C1033C3 LEVER, throttle 1
80 3356-33321 SPRING, throttle 1
81 04025-00524 SPRING PIN 1
82 2616-33412 DAMPER (B) 1
83 3356-34111 COVER, grip 1
84 848C3033E3 ARM 1
85 3356-32210 SCREW 1
86 3350-34210 LEVER, switch 1
87 3356-34221 SPRING, switch 1
88 2616-34230 SPRING PIN 1

3356-34301 FUEL PIPE ASSY 1 Incl. 89 thru 97
89 3356-34310 PIPE 1
90 3356-34320 GROMMET 1
91 1260-85460 CLIP 1

3302-85400 FILTER ASSY 1 Incl. 94 thru 97
92 ✩ BODY 1 ✩3302-85400
93 SCREEN 2
94 ✩ RING 1 ✩3302-85400
95 ✩ SLEEVE 1 ✩3302-85400
96 FILTER 2
97 ✩ CLIP 1 ✩3302-85400

3350-34400 CAP ASSY, fuel tank 1 Incl. 98 thru 102
98 ✩ CAP, fuel tank 1 ✩3350-34400
99 ✩ CHAIN, cap 1 ✩3350-34400

100 ✩ STOPPER 1 ✩3350-34400
101 ✩ SCREW 1 ✩3350-34400
102 3350-34450 GASKET 1
103 2616-35151 DAMPER, rear right 1
104 0262-10514 SCREW 2
105 3320-14140 WASHER 2
106 2616-35170 BOLT 2
107 2616-35132 DAMPER, rear left 1
108 2616-25320 SCREW 2
109 2616-35141

DAMPER, rear right bottom

1
110 1490-32120 SCREW 1
111 2856-35180 CAP 1
112 2616-35112 DAMPER, front 2
113 3356-35121 CAP 2
114 848C9075Z1 SCREW 1

3350-34501 BREATHER ASSY 1 Incl. 210 thru 212
210 3317-86100 BREATHER 1
211 3350-34540 PIPE 1
212 1260-85460 CLIP 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

Fig.1 POWER UNIT

G621AVS

Fig.2 POWER UNIT

G621AVS

Fig.2 POWER UNIT

G621AVS

117 2618-41112 PISTON 1

118 2618-41210 RING, piston 2

119 3366-41310 PIN, piston 1

120 3350-41320 SNAP RING 2

121 1400-41410 NEEDLE BEARING 1

122 2616-41510 THRUST WASHER 2

123 2616-42007 CRANKSHAFT COMP. 1

124 1300-42410 SHIM 0~2

125 1000-43240 KEY 1

126 0290-21025 WASHER 1

127 1300-43231 NUT 1

128 3350-51110 DRUM, clutch 1

129 3360-51120 RIM, sprocket 1 3/8Px7T

130 3350-98810 RIM, sprocket 1 OP 325Px8T

2616-51202 CLUTCH ASSY 1 Incl. 131 thru 134

131 2616-51210 PLATE, clutch 1
132 ✩ SHOE, clutch 1 ✩2616-51202

133 3350-51231 SPRING, clutch 1
134 ✩ BOSS, clutch 1 ✩2616-51202

135 3320-41410 NEEDLE BEARING 1

136 3350-51320 WASHER 1

137 3310-43220 NUT 1

3356-53003 CHAIN COVER ASSY 1 Incl. 138 thru 141

2618-53002 CHAIN COVER ASSY 1

OP Incl. 139 thru 143

138 ✩ CHAIN COVER 1 ✩3356-53003
139 ✩ CHAIN COVER 1

OP ✩2618-53002

140 3356-53220 PLATE, outer 1

141 0277-10410 SCREW 1

142 0261-00410 SCREW 1 OP K6

143 2616-53300 PROTECTOR COMP. 1 OP K6

144 2618-53510 SPIKE 1 OP K6

145 2670-14320 SCREW 2 OP K6

146 3310-53331 NUT 2 OP K6

148 2623-53121 LABEL 1

149 3350-53410 NUT, chain cover 2

150 3356-53210 PLATE, inner 1

151 0261-00410 SCREW 1

848C906703 OIL PUMP ASSY 1 Incl.152 & 153

152 848C906713 BODY 1

153 3356-55120 WORM 1

154 3356-55310 GASKET, oil pump 1

155 0263-90520 SCREW 3

156 3356-55450 GROMMET, oil pump 1

157 3356-55511 SHAFT, oil adjust 1

2618-71102 ROTOR COMP. 1 Incl. 159 thru 162

158 2616-71112 ROTOR 1

159 3366-71120 RATCHET 2

160 3350-71131 SPRING 2

161 3388-71150 WASHER 2

162 3310-71142 BOLT 2

163 848C9071B1 SOURCE COIL 1

2616-71301 IGNITION COIL COMP. 1 Incl. 164 thru 166

164 ✩ COIL, ignition 1 ✩2616-71301

165 2616-71320 CAP 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

166 2616-71331 CORD, high tension 1

167 2616-71410 CORD, primary 1

168 2616-71420 CORD, switch 1

169 2616-71430 CORD, earth 1

170 2850-72110 CAP, spark plug 1

171 1400-72121 SPRING, plug cap 1

172 2850-71320 TUBE, high tension 1

173 3350-15250 BOLT 2

174 0263-30416 SCREW 2

175

3699-90032-10

SPARK PLUG 1 Champion RCJ-7Y

2618-75004 STARTER ASSY 1 Incl. 176 thru 186

2618-75103 STARTER CASE COMP. 1 Incl. 176 & 177
176 ✩ CASE, STARTER 1 ✩2618-75103

177 2616-75120 GUIDE, rope 1

178 3350-75213 REEL 1

3356-75302 SPIRAL SPRING COMP. 1 Incl. 179 & 180
179 ✩ SPRING, spiral 1 ✩3356-75302
180 ✩ HOLDER, spring 1 ✩3356-75302

181 3356-75410 ROPE 1

182 3350-75420 KNOB, starter 1

183 3310-75431 WASHER 1

184 3320-75350 WASHER 1

185 1490-32120 SCREW 1

186 2630-82550 SCREW 2

187 2623-75131 LABEL 1

188 3366-75612 COVER, fan 1

189 848C9075Z1 SCREW 1

190 2616-75720 SCREW 3

191 2627-81001 CARBURETOR ASSY 1 Ref. Fig.3

193 3356-82114 MANIFOLD 1

194 8488158500 BOLT 2

195 01601-20513 WASHER 2

196 01641-20508 WASHER 2

197 2616-82310 ROD, choke 1

198 3356-82321 GUIDE, adjuster 1

199 2616-82410 ROD, throttle 1

200 848C908315 AIR CLEANER COMP. 1

Felt type, Incl. 208

201 848C918311 AIR CLEANER COMP. 1 OP Nylon net type,

Incl. 208

202 2627-83201 SILENCER COMP. 1

2622-83302

CLEANER COVER COMP.

1Incl. 203 thru 205

203 ✩ COVER, air cleaner 1 ✩2622-83302

204 3356-83322 KNOB 1

205 3388-83340 GASKET, knob 1

207 2610-83220 CAP, silencer 1

208 848C9083C0 PLATE 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

G621AVS

2627-81001 CARBURETOR ASSY 1

1 BODY ASSY 1

2 3306-81380 SCREEN, inlet 1

3 3350-81130 COVER, pump 1

4 3350-81140 COVER, diaphragm 1

5 3366-81151 SHAFT ASSY, throttle 1

6 3366-81340 VALVE, throttle 1

7 3356-81171 SHAFT ASSY, choke 1

8 2616-81180 VALVE, choke 1

9 3350-81190 STOP, throttle 1

10 3356-81310 VALVE, inlet 1

11 3350-81220 BALL, friction 1

12 3350-81230 GASKET, pump 1 K2

13 3350-81240 GASKET, diaphragm 1 K2

14 3350-81250 LEVER, metering 1

15 2618-81260 DIAPHRAGM, pump 1 K3

16 3350-81270 DIAPHRAGM ASSY 1 K3

17 2880-81470 SCREW, valve 3

18 3310-81240 SCREW, metering lever 1

19 1491-81130 SCREW, pump cover 1

20 3310-81250 PIN, metering lever 1

21 2670-81430 SCREW, idle speed 1

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

22 3310-81351 SCREW ASSY 4

23 3350-81350 SPRING, friction 1

24 1491-81161 SPRING, needle adjust 2

25 3350-81370 SPRING, metering lever 1

26 3350-81380 SPRING, idle speed 1

27 3350-81391 SPRING, throttle return 1

28 2618-81410 NEEDLE, high speed 1

29 2610-81420 NEEDLE, idle 1

30 3356-81430 PLUG, friction 1

31 1480-81420 PLUG, welch 1

K2 3350-06020 GASKET KIT 1 OP

K3 3350-06030 DIAPHRAGM KIT 1 OP

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

Fig.3 CARBURETOR COMPONENTS

G621AVS

1 3356-97110 PROTECTOR, guide bar 1 OP for 16"~18" bar

2 3665-97110 PROTECTOR, guide bar 1 OP for 20"~24" bar

3 3670-52112 BAR 16", sprocket nose 1 OP 325P

4 3673-52113 BAR 18", sprocket nose 1 OP 325P

5 3674-52113 BAR 20", sprocket nose 1 OP 325P

6 848CC3LG60 CHAIN, for 16" bar 1 OP 73LGX-60E

7 848CC3LG66 CHAIN, for 18" bar 1 OP 73LGX-66E

8 848CC3LG72 CHAIN, for 20" bar 1 OP 73LGX-72E

9 3320-91140 PLUG WRENCH 1

10 2670-91150 SCREWDRIVER 1

2616-96000 SPECIAL TOOL KIT 1 OP Incl. 11 thru 17

11 2890-96100 PULLER ASSY. rotor 1 OP

12 2616-96210 WRENCH, clutch 1 OP

13 3350-96220 STOPPER, piston 1 OP

14 3350-96240 GAUGE, air gap 1 OP

15 3350-96510 GUIDE, brake spring 1 OP

16 3330-97210 WRENCH 1 OP

17 3356-96230 GUIDE, piston pin 1 OP

Key# PART NUMBER DESCRIPTION

Q'TY
/UNIT

NOTE

Fig.4 ACCESSORIES