background image

6

SRM-3805
SRM-4605 

SERVICE INFORMATION

1-6  Special tools

a

1.5

1.6

5

1.3

0.4

c

a

b

1

5

16

2

6

17

3

7

12: c=34 mm
13: c=31 mm

18

20

9

4

8

14

Key

Part Number

Description

Used for:

1

Tachometer

Measuring engine speed to adjust carburetor

2

895610-79920

L-hex. wrench(4 mm) Removing and installing hex. socket bolt (M5)

3

897563-19830

Metering lever gauge Measuring metering lever height on carburetor

4

897501-03938

Puller

Removing flywheel

5

897603-23030

PTO shaft puller

Removing PTO shaft

6

897701-06030

Bearing wedge

Removing ball bearings remaining on crankshaft

7

897701-14732

Bearing tool

Removing and installing crankcase / clutch drum bearing

8

897702-30131

Piston pin tool

Removing and installing piston pin (Use 8 mm dia. adapter)

9

897712-04630

2-pin wrench

Removing and installing pawl carrier

10

897714-22830

Oil seal tool

Installing drive gear assembly into gear case

11

897714-24330

Oil seal tool

Installing drive gear ball bearings
Installing PTO shaft ball bearing
Installing crankcase oil seal (starter side)

12

897718-02830

Bearing tool 

Installing crankcase ball bearings (clutch side)

13

897718-03930

Bearing tool 

Installing crankcase ball bearings (starter side)

14

897719-02830

Piston holder

Making piston steady to remove and install piston and rings

15

897726-16130

Oil seal tool

Installing crankcase oil seal (clutch side)

16

897800-79931

Spark tester

Checking ignition system

17

897803-30130

Pressure tester

Testing carburetor and crankcase leakages

18

897826-16131

Pressure plug

Plugging intake port to test crankcase and cylinder leakages

19

897827-16131

Pressure plate

Plugging intake port to test crankcase and cylinder leakages

20

897831-16131

Pressure plug

Plugging exhaust port to test crankcase and cylinder leakages

21

897835-16131

Pressure connector

Testing crankcase and cylinder leakages

15

19

21

10:

= 10 mm
= 25.5 mm

11:

= 12 mm
= 32 mm

Summary of Contents for SRM-3805

Page 1: ...on available at the time of publication For further information to service these models please refer to ECHO SERVICE MANUAL Ord No 402 21 TRIMMER BRUSHCUTTER SRM 3805 SRM 4605 Reference No 10 37A 00 I...

Page 2: ...h primer without primer Model WALBRO WT 297 WALBRO WT 120B Venturi size Throttle bore mm in 11 11 15 85 0 437 0 624 12 7 15 85 1 2 0 624 Ignition Type Capacitor discharge ignition system in a single i...

Page 3: ...0 4 0 012 0 016 Ignition timing BTDC 25 Carburetor Type Diaphragm horizontal draught Supplier Walbro WT 297 Walbro WT 120B Venturi Size mm in 11 11 0 437 12 7 1 2 Throttle Bore mm in 15 85 0 624 15 85...

Page 4: ...lutch drum case M 5 70 100 60 95 Engine Crankcase M 5 70 110 60 95 Cylinder M 5 70 110 60 95 Cylinder cover M 5 30 45 26 40 Top guard M 5 30 45 26 40 Muffler M 5 60 100 52 85 Muffler bracket M 5 30 45...

Page 5: ...06 2nd Max 0 1 0 004 0 1 0 004 F Piston pin outer diameter Min 9 98 0 3929 9 98 0 3929 G Piston ring width Min 1 15 0 045 1 15 0 045 H Piston ring end gap Max 0 5 0 02 0 5 0 02 K Connecting rod small...

Page 6: ...alling drive gear assembly into gear case 11 897714 24330 Oil seal tool Installing drive gear ball bearings Installing PTO shaft ball bearing Installing crankcase oil seal starter side 12 897718 02830...

Page 7: ...2 SERVICE HINT 2 1 Gear case construction 7 SERVICE INFORMATION SRM 3805 SRM 4605 Drive gear Driven gear PTO shaft Nut Adapter plate L Gear case Adapter plate U Cover plate Dust seal plate O ring...

Reviews: