Echo PB-46LN Mounting instructions

21-44A-OO PB-46LN PB-46HT PB-60HT
1
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 on technical
improvement of our products. For this
reason,
technical data, equipment and design are subject to
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 ............................. 2
1-1
Specifications ............................................ 2
1-2
Technical data ........................................... 3
1-3
Torquelimits .............................................. 4
1-4
Special repairing materials ....................... 4
1-5
Service limits ............................................. 5
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
I 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)
I 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
X 1400 (0.15 X 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

3
SERVICE INFORMATION
PB-60HT
PB-46LN PB-46HT
1-2 Technical data
Models PB-46LN
I 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 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 0)
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 15
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
0 BTDC
30

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
M 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- 15
9- 13
Spark plug
M14
150- 170
130-150
Enginemount
M 5
30-40
25-35
Pawl carrier
M 8
80- 100
70-90
Starter drum (Reel}
M 5*
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- 17
Bracket(Cable/Pipe holder)
M 5
15-20
13- 17
Throttle control (Lever) M 6
20-30 17-25
Top handle
M 5
15-20
13- 17
Cushion
Fancase side
M 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
- 16
M 5
27-32
23-28
M 6
45-65
40-55
M 8
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

5
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
I
PB-60HT
A
Cylinder bore
When plating is worn and aluminum can be seen
B Piston outer diameter
mm(in)
Min.
39.88 (1.5701)
I
45.90 (1.8071)
c
Piston pin bore mm(in)
Max.
10.027 (0.3948)
D
Piston ring groove,
1st mm(in)
Max.
1.65 (0.065)
I 1.3 {0.051)
nd mm(in)
Max.
1.6 {0.063)
I
1.3 ( 0.051 )
E Piston ring
side
clearance,
2
1st
mm(in)
Max.
0.15 ( 0.006 )
nd mm(in)
Max. 0.1 (0.004)
F
Piston pin outer diameter mm(in)
Min.
9.98 (0.3929)
G
Piston ring width mm(in) Min. 1.45 (0.057)
I
1.15 {0.045)
H
Piston ring end gap mm(in) Max. 0.5 (0.02)
K Con-rod small end bore mm(in) Max. 14.025 (0.5522)
L
Con-rod big end side play mm(in) Max. 0.4 (0.016)
M
Crankshaft runout mm(in)
Max.
0.05 (0.002)