SERVICE INFORMATION
PB-251
PB-255ES
ES-255ES
2
1 SERVICE INFORMATION
1-1 Speci
fi
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
Muf
fl
er type
Spark arrestor muf
fl
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.
