21-58B-00 PB-610 PB-611 1

2

SERVICE DATA

POWER BLOWER PB-610 (Serial number : 02001001~02999999) PB-611 (Serial number : 02001001~02999999)

INTRODUCTION CONTENTS page We are constantly working on technical 1 SERVICE INFORMATION ...... 2 improvement of our products. For this reason, 1-1 Specification ...... 2 technical data, equipment and design are 1-2 Technical data ...... 3 subject to change without notice. All 1-3 Torque limits ...... 4 specifications and directions in this SERVICE 1-4 Special repairing materials ...... 4 DATA are based on the latest products 1-5 Service limits ...... 5 information available at the time of publication. ECHO SERVICE MANUAL Ord. 403-10 contains lots of information for servicing these models.

Reference No. 21-58B-00 ISSUED: 200308

INDEX

PB-610

2 SERVICE INFORMATION PB-611

1 SERVICE INFORMATION

1-1 Specifications Model PB-610 PB-611 Dimensions Length* mm(in) 320 (12.6) 320 (12.6) Width* mm(in) 460 (18.1) 460 (18.1) Height* mm(in) 440 (17.3) 480 (18.9) Dry weight ** kg(lb) 10.9 (24.1) 9.5 (20.9) Engine Type KIORITZ, air-cooled, two-, single Rotation Counterclockwise as viewed from the output end Displacement cm3(in3) 58.2 (2.29) mm(in) 46.0 (1.81) Stroke mm(in) 35.0 (1.38) 6.8 Type Diaphragm, horizontal-draught, with primer (purge pump) Model ZAMA C1M-K49C Ignition Type CDI ( discharge ignition) system single integrated piece BPM8Y Type Automatic rewind Rope diameter x length mm(in) 4 x 1350 (5/32 x 53) Fuel Type Premixed two-stroke fuel (Refer to Operator’s manual.) Two-stroke engine oil ISO-L-EGD (ISO/CD13738) and JASO FC Standards† Tank capacity cm3 (U.S.fl.oz.) 1900 (64.3) Throttle control type Single throttle trigger type Trigger type with lock Throttle lever location Spring mounted (Hip throttle type) Adjustable-tube mounted Blower type Centrifugal, single stage Max. air volume (with pipes) m3/min (ft3/min) 15.1 (535) Max. air velocity (with pipes) m/s (mph) 87.0 (190) Discharge inner diameter mm (in) 62 (2.44)

* Without blower pipes. **With blower pipes. † Refer to Operator’s manual.

PB-610 PB-611 SERVICE INFORMATION 3

1-2 Technical data Model PB-610 PB-611 Engine Idling speed r/min 2300-3200 Rated speed r/min 7000 - 8000 Compression pressure MPa (kgf/cm2 ) (psi) 1.05 (10.5) (150) Spark plug gap mm (in) 0.6 - 0.7 (0.024 - 0.028) Minimum secondary at 1000 r/ min kV 15

Secondary coil resistance kΩ 1.0 - 1.5 Pole shoe air gaps mm (in) 0.30 - 0.40 (0.012 - 0.016) °BTDC 30 Carburetor Venturi size mm(in) 12.5 (0.492) Throttle bore mm(in) 16.0 (0.630) Idle speed screw initial setting turn in* 1 3/4 - 2 3/4

Test Pressure, minimum MPa (kgf/cm2 ) (psi) 0.05 (0.5) (7.0) Metering lever height mm (in) 0.1 - 0.25 (0.004 - 0.028) lower than diaphragm seat

BTDC: Before top dead center.

* Set idle speed screw to contact throttle plate before initial setting.

PB-610

4 SERVICE INFORMATION PB-611

1-3 Torque limits Descriptions Size kgf • cm N• m in• lbf Starter Pawl carrier M 8 80 - 100 8 - 10 70 - 90 system Starter drum (Reel) M 5† 27 - 32 2.7 - 3.2 23 - 28 Starter case M 4 15 - 20 1.5 - 2.0 13 - 17 Ignition rotor () M 10 250 - 350 25 - 35 220 - 300 system M 5 30 - 40 3 - 4 25 - 35 Spark plug M 14 150 - 170 15 - 17 130 - 150 Dust cover M 5 10 - 15 1.0 - 1.5 9 - 13 Fuel Carburetor M 5 30 - 40 3 - 4 25 - 35 system insulator M 5 30 - 40 3 - 4 45 - 55 Intake adapter clamp** M 5 6 - 8 0.6 - 0.8 5 - 7 Engine M 5*** 30 - 40 3 - 4 25 - 35 Cylinder M 5*** 75 - 85 7.5 - 8.5 65 - 75 Engine mount M 5 30 - 40 3 - 4 25 - 35 Cylinder cover M 5 30 - 40 3 - 4 25 - 35 M 6 130 - 150 13 - 15 110 - 130 Muffler bracket M 5 30 - 40 3 - 4 25 - 35 Muffler insulator M 5 15 - 20 1.5 - 2.0 13 - 17 Others Fan M 5 75 - 85 7.5 - 8.5 65 - 75 Fan case M 5 * 30 - 40 3 - 4 25 - 35 Cushion Fan case side M 5 * 30 - 40 3 - 4 25 - 35 Frame side M 5 30 - 40 3 - 4 25 - 35 Top handle** M 5 15 - 20 1.5 - 2.0 13 - 17 Bracket (Cable holder) M 5 15 - 20 1.5 - 2.0 13 - 17 Throttle lever M 6 20 - 30 2 - 3 17 - 25 Regular bolt, nut, M 3 6 - 10 0.6 - 1.0 5 - 9 and screw M 4 15 - 25 1.5 - 2.5 13 - 22 M 5 25 - 45 2.5 - 4.5 22 - 40 M 6 45 - 75 4.5 - 7.5 40 - 65 M 8 110 - 150 11 - 15 95 - 130 * Tapping screw **PB-610 only *** The torque differences among four bolts should not exceed 20 kgf•cm (2Nm, 17in•lbf) on one cylinder or crankcase. † Apply thread locking sealant. (See below)

1-4 Special repairing materials

Material Location Remarks

Grease Rewind spring TM Starter center post Lithium based grease or ECHO LUBE Oil seal innner lips Thread locking sealant Starter drum Loctite #222, ThreeBond #1342 or equivalent

PB-610 PB-611 SERVICE INFORMATION 5

1-5 Service limits

Description mm (in) Cylinder bore When plating is worn and aluminum can be seen outer diameter Min. 45.94 (1.809) Piston pin bore Max. 10.025 (0.3947) groove Max. 1.6 (0.063) Piston ring side clearance Max. 0.1 (0.004) Piston pin outer diameter Min. 9.98 (0.393) Piston ring width Min. 1.45 (0.057) Piston ring end gap Max. 0.5 (0.02) Con-rod small end bore Max. 14.025 (0.552) Con-rod big end side play Max. 0.5 (0.020) runout Max. 0.05 (0.002)