Technical Information; Engine Information; Description Of The Machine And Its Parts - Vari DS-521D Bedienungsanleitung

2.3.1.1 Technical information

DS-521D, DS-521DB
Length
Width (including the side screen)
Height
Weight
Maximum cutting width
Safe climbing ability
Cutting disk revolutions 47
Maximum blade circumferential velocity
Travelling speed
Area capacity 48
Gearbox oil capacity
Gearbox oil quality
Tab. 4: Technical information for DS-521D, DS521DB

2.3.1.2 Engine information

Engine
Type
Engine displacement
Bore x stroke
49
Max. power/at rpm (HP)
Max. torque/at rpm 50
Maximum (set) engine rpm
Fuel consumption
Maximum engine tilt (long period)
Maximum engine tilt (short period
Fuel tank volume 52
Fuel
Engine oil filling
Oil quality
Ignition plug
Tab. 5: Engine technical information

2.3.2 Description of the machine and its parts

Brush cutter DS-521D, DS-521DB (Pict.3) is built on a steel frame, to which all important parts of the machine are attached. All controls (1,2 and 4)
are placed on the handlebars. Handlebars are attached to the frame with a bolted connection (3) and their height is adjustable into 3 positions.
Handles (12) secure a firm grip and machine handling during work. On the left side of the handlebars, there is the wheel drive clutch lever (2) which
controls the movement of the machine in forward direction. On the right side, there is lever (1) of the disc drive clutch for turning the cutting disk drive on
(off). Both control levers return to their original position when the handlebars are released in a critical situation and disconnect the engine power transfer.
The cutting disk is equipped with an automatic brake
controlled by worm-gear unit with a belt clutch which provides fluent power transfer onto the wheels (15) (the machine does not start with a jump). The
gearbox and clutch are covered by a plastic gearbox cover (16). There is the cutting disk (7) with four steel blades (8) in the front part. The attendant is
protected against flying parts of the cut stand by plastic cover (10) and cutting disc steel cover (9) which meet the EN 12 733 standard. A detachable side
screen (6), which is attached with a bolted connection (5), controls the line spacing.
47 Actual rpm. of the disc when not cutting, including belt transmission losses.
48 Square meters cut per min./hour will vary, depending on the type of the stand.
49 Measured according to new Society of Automotive Engineers (SAE) J1349 standard
50 Measured according to new Society of Automotive Engineers (SAE) J1349 standard
51 Short period – up to 1 minute.
52 Measured according to new Society of Automotive Engineers (SAE) J1349 standard
53 The automatic break is an active protective feature that supports the machine's safety.
20
Unit
mm
mm
mm
kg
cm
∠
min -1
m.s -1
km.h -1
m 2 .h -1
l (litre)
API
SAE
Unit
-
cm 3
mm
-1
kW/min (HP)
N.m/min -1
min -1
l (litre)
∠
51 ) ∠
l (litre)
(unleaded) petrol
l (litre)
SAE
-
53 which stops the disk. Engine speed is controlled with an accelerator lever (4). The wheel drive is
DS-521D
1730
763
1180
64
58,5
10°
1990
60,9
2,0
1170
0,025
GL-4 (GL-5)
90 (80W-90)
Value
HONDA GCV-160
160
64 x 50
3,3/3600 (4,4)
9,4/2500
3200 ± 100
1,1 at 3000min -1
20°
30°
0,91
ON 91-95
0,55
SAE 10W-30
SAE 30
NKG BPR6ES
BRISK LR15YC
DS-521DB
63
Briggs & Stratton 675 Series TM
190
68,3 x 51,8
2,7/3200 (3,6)
9,2/3060
3200 ± 100
1,55 at 3060min -1
15°
30°
1
ON 91-95
0,6
SAE 10W-30
SAE 30
CHAMPION RJ19LM
BRISK JR 19