Echo PB-46LN Mounting instructions

21-44A-OO PB-46LN PB-46HT PB-60HT

ECHO

SERVICE

DATA

POWER

BLOWER

PB-46LN

PB-46HT

PB-60HT

INTRODUCTION

CONTENTS

page

ECHO SERVICE MANUAL Ord. No.

403-10

contains lots of information for servicing these

models.

We are

constantly working

technical

improvement of our products. For this

reason,

technical data, equipment and design

are

subject

change without

notice.

All

specifications,

illustrations and directions in this

SERVICE

DATA

are based on the latest products

information

available

at thetimeofpublication.

1 SERVICE INFORMATION

.............................

1-1

Specifications

............................................ 2

1-2

Technical

data ........................................... 3

1-3

Torquelimits

.............................................. 4

1-4

Special repairing

materials ....................... 4

1-5

Service limits .............................................

1-6

Special

tools ............................................. 6

Reference

No. 21-44A-OO

ISSUED:

199806

KIORITZ CORPORATION

TOKYO JAPAN

Printed in

Japan

PB-60HT

2 SERVICE INFORMATION PB-46LN PB-46HT

1 SERVICE

INFORMATION

1-1

Specifications

Models PB-46LN

PB-46HT

PB-60HT

Dimensions Length* mm(in) 320 (12.6) 320

(

12.6

)

Width* mm(in) 460 (18.1)

460(

18.1

)

Height* mm(in) 450 (17.7) 450

(

17.7

)

Dry weight without pipes kg(lb) 12.0 (26.4)

10.2 (22.4) 10.2

(

22.5

)

Engine Type

KIORITZ, air-cooled, two-stroke, single

cylinder

Rotation Counterclockwise as viewed from the output

end

Displacement

cm3(in3) 44.0 (2.684)) 58.2

(3.550)

Bore mm(in)

40.0 (1.575) 46.0

(

1.811

)

Stroke mm(in)

35.0 (1.378) 35.0

(

1.378

)

Compression

ratio 7.0

6.4

Carburetor Type Diaphragm,

horizontal-draught,

with

primer

Model

ZamaC1M

Ignition Type CDI (Capacitor discharge ignition)

system

in a single integrated

piece

Spark plug BPM7Y,

BPMR7A

Starter Type

Automatic

rewind

Rope diameter x length mm(in) 3.8

1400 (0.15

55.1)

Fuel Type Premixed two-stroke fuel (Refer to Operator's manual.

)

Tank capacity liter (US.fl.oz.) 1900

(64.2)

Blower Fan type Centrifugal, single

stage

Max. air volume (with

pipes)

m3fmin(ft3fmin) 10.3 (364) 11.5

(406)

Max. air velocity (with

pipes)

m/s(mph) 78.9 (176) 88 (197)

Discharge pipe ID mm(in)

58 (2 1/4} 58 (2 1/4)

*Without blower

pipes.

ID: Inner

diameter

SERVICE INFORMATION

PB-60HT

PB-46LN

PB-46HT

1-2

Technical

data

Models PB-46LN

PB-46HT

PB-60HT

Engine

Slow speed rpm

2100-2700

2500-2900

Rated speed rpm

6400-6700

7000-7500

Compression

pressure,standard kgf/cm2(psi) 8.0 (115)

7.5(110)

Carburetor

C1U-K37A,

C1U-K37B

C1U-K49, C1U-K49A

Venturi Size mm(in) 9.5 (0.374) 12.5

(

0.492

)

Throttle Bore mm(in) 16.0 (0.630) 16.0

(

0.630

)

Idle speed screw initial setting

turn in

3-4

Test Pressure, minimum kgf/cm2(psi) 0.5 (7.0) 0.5 (7.0)

Metering lever height mm(in)

0.1

0.25 (0.004

0.01

lower than diaphragm

seat

Ignition

system

Spark plug gap mm(in)

0.6.0.7 (0.024-

0.028)

Minimum secondary voltage at 1000rpm kV

Secondary coil resistance kQ

1.0-

1.5,

1.3- 1.8

Pole shoe air gaps mm(in) 0.3 • 0.4 (0.012 •

0.016)

Ignition timing

BTDC

4 SERVICE INFORMATION PB-46LN PB-46HT

PB-60HT

1-3 Torque

limits

Descriptions

Size

kgfecm

in•lbf

Crankcase

M 5

30-40

25-35

Cylinder

M 5

75-85

65-75

Cylinder cover

M 5

30-40

25-35

Intake insulator

M 5

50-60

45-55

Carburetor

M 5

30-40

25-35

Intake adapter clamp

M 5

6-8

5-7

Fan

M 5

75-85

65-75

Fancase

5**

30-35

25-30

Flywheel

M10

280-320

245-280

Ignition coil (CDI module)

M 5

30-40

25-35

Dust cover

M 5

10-

Spark plug

M14

150-

170

130-150

Enginemount

M 5

30-40

25-35

Pawl

carrier

80-

100

70-90

Starter drum (Reel}

27-32

23-28

Muffler

M 6

130-

150

110-

130

Mufflerbracket

M 5

30-40

25-35

Muffler insulator

M 5

15-20

13-

Bracket(Cable/Pipe holder)

M 5

15-20

13-

Throttle control (Lever) M 6

20-30

17-25

Top

handle

M 5

15-20

13-

Cushion

Fancase side

5**

30-35

25-30

Frameside

M 5

30-40

25-35

Regular bolt, nut,

and screw

M 3

6-9

5-8

M 4

13-

18 11

M 5

27-32

23-28

M 6

45-65

40-55

110-

150

115-

130

•

Apply thread locking sealant (Loctite #222, ThreeBond#1342,or equivalent).

••

Tapping

screw.

1-4 Special repairing

materials

Material

Location

Remarks

Grease

Rewind spring

Lithium based grease

Starter centerpost

Oil seal inner lips

Thread locking sealant

Starter drum

Loctite #222, ThreeBond #1342 or equivalent

SERVICE INFORMATION

PB-60HT

PB-46LN

PB-46HT

1·5 Service limits

A B c D

51<206 51<207

Models

PB-46LN, PB·46HT

PB-60HT

Cylinder

bore

When plating is worn and aluminum can be

seen

Piston outer diameter

mm(in)

Min.

39.88 (1.5701)

45.90

(1.8071)

Piston pin bore

mm(in)

Max.

10.027

(0.3948)

Piston ring

groove,

1st

mm(in)

Max.

1.65 (0.065)

1.3 {0.051)

mm(in)

Max.

1.6 {0.063)

1.3

(

0.051

)

E Piston ring

side

clearance,

1st

mm(in)

Max.

0.15

(

0.006

)

mm(in)

Max.

0.1

(0.004)

Piston pin outer diameter

mm(in)

Min.

9.98

(0.3929)

Piston ring width

mm(in)

Min.

1.45 (0.057)

1.15 {0.045)

Piston ring end gap

mm(in)

Max.

0.5

(0.02)

K Con-rod small end bore

mm(in)

Max.

14.025

(0.5522)

Con-rod big end side play

mm(in)

Max.

0.4

(0.016)

Crankshaft runout

mm(in)

Max.

0.05

(0.002)

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