G
RASS
T
RIMMER
/B
RUSH
C
UTTER
O
PERATOR
'
S
M
ANUAL
13
SPECIFICATIONS
* Install and use U-Handle when operating any model with blade.
**The RPM range shown applies for all attachments. Refer to your attachment Operator's Manual "Specifications"
section for proper RPM specifications.
MODEL SRM-2100SB SR M-2400SB
Shaft Length 1500 mm (59 in.)
Unit Width 330 mm (13.0 in.)
Unit Height 300 mm (11.8 in.) 360 mm (12.4 in.)
Wei g ht (dry) w /c utting
attac hment 5.4 kg (11.9 lb.) 5.6 kg (12.4 lb.)
Engine Type Air cooled, two-stroke, single cylinder gasoline engine
Bore 32.2 m m (1.27 in.) 3 4 .0 m m (1.34 in.)
Stroke 26.0 mm (1.04 in.)
Dis p la ceme nt 21.2 c c ( 1 .2 9 cu. in.) 23.6 c c ( 1 .4 4 cu. in.)
Exhaust System Spark Arrestor Muffler
Carburetor Zama Diaphragm model C1U w/purge Walbro Diaphragm model WYJ w/purge
Ignition System CDI (capacitor discharge ignition)
Spark Plug NGK BPMR-7A Gap 0.65 mm (0.026 in.) NGK BPMR-7A Gap 0.65 mm (0.026 in.)
Fuel Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio 50:1 ECHO High Performance, two-stroke air cooled engine oil
Gasoline 89 Octane unleaded. DO NOT use fuel containing methyl alcohol,
more than 10% ethyl alcohol or 15% MTBE.
Oil 50:1 ECHO High Performance, two-stroke air cooled engine oil
Fuel Tank Capacity 0.4 lit. (14.0 US fl. oz.)
Starter System A utomatic Recoil Starter
Clutch Centrifugal Type
Drive Shaft (upper & lower) 1/4 in. Flex Shaft
Rotating Direction Counter clockwise viewed from top
Cutting A ttachm ent Nylon line head (2 -line) w ith .09 5 i n. C ros s F ireTM line cap a c ity 1 3 m (4 0 ft.)
Handles* Front - Loop, Rear - Grip, when operating with standard line head
Shoulder Harness Optional
Idle Speed (RPM) 2700 - 3300
Wide Open Throttle
Speed (**RPM) 8300 - 9500