SERVICE INFORMATION
PB-251
PB-255ES
ES-255ES
2
1 SERVICE INFORMATION
1-1 Specifi cations
Model PB-251 PB-255ES ES-255ES
Dimensions Length* mm(in) 340 (13.4)
Width* mm(in) 265 (10.4) 260 (10.2)
Height mm(in) 350 (13.8)
Dry weight with blower pipe** kg(lb) 4.5 (9.9) 4.8 (10.5) ---
with vacuum pipe and bag*** kg(lb) --- --- 5.9 (12.9)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Anticlockwise as viewed from the output end
Displacement cm
3
(in
3
) 25.4 (1.55)
Bore mm(in) 34.0 (1.34)
Stroke mm(in) 28.0 (1.10)
Compression ratio 7.0
Carburettor Type
Rotary type : Diaphragm, horizontal-draught, with primer purge bulb
Model ZAMA RB-K85
Ignition Type CDI (Capacitor discharge ignition) system
Variable Slope Timing (VST) : Slope advance ignition
system combined with electronic speed governor
Spark plug BPMR8Y
Exhaust Muffl er type Spark arrestor muffl er with catalyst
Starter Type Automatic rewind ES (effortless start)
Rope diameter x length mm(in) 3.0 x 815 (1/8 x 32.1)
Fuel Type
†
Premixed two-stroke fuel
Mixture ratio 50 : 1 (2%)
Petrol Minimum 89 octane
Two-stroke engine oil
ISO-L-EGD (ISO/CD13738), JASO FC/FD
Tank capacity L (U.S.fl .oz.) 0.5 (16.9)
Blower Fan type Centrifugal, single stage
Blower pipe type Fan head
Max. air volume (with pipes)
8.5 (300) 9.2 (325)
m
3
/min ( ft
3
/min)
Max. air velocity (with pipes)
71 (159) 67 (150)
m/s (mph)
Blower nozzle size, (inner) mm (in) 113 x 24 (4.5 x 0.94) oval shape
*Without blower pipes **With all blower pipes
***With vacuum pipe and bag
†
Refer to Operator’s manual.
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