Viking MB 410 Handbuch
15.01
Technical Information
With its new MB 410 and MB 415 petrol lawnmo-
wers, VIKING has expanded its product line with two
new models, while simultaneously laying the foun-
dation for a new generation of lawnmowers.
The new, compact, and easy-to-service E•Line
models round off the lower end of our product
range.
The lightweight, monocoque plastic housing made
of high quality polymer is torque resistant and,
thanks to its smooth surface, easy to clean.
The MB 410 and MB 415 models are equipped with
a high performance four-stroke combustion engine
with primer carburettor and fixed throttle setting.
As with an electric lawnmower, the engine speed
remains constant during operation.
The engine is stopped via the motorstop lever.
Model MB 415 is also equipped with a heavy duty,
maintenance free single-speed gearbox for conve-
nient operation.
The New MB 410, MB 415 Lawnmowers
Technical Information 15.01 - Page 2 -
Overview:
1. General information
2. Appliance overview
3. Cutting height adjustment
4. Engine oil and fuel
5. Maintenance
6. Troubleshooting
7. Technical specifications
8. Repair times
9. Spare parts list
1. General information
Always read the instruction manual before operating
for the first time. National legislation and the safety
instructions in the instruction manual must be
observed for repairs or maintenance, particularly
when operating the appliance for the first time
(test run).
To avoid serious injury, the engine must always be
switched off when performing maintenance work on
the lawnmower.
Before carrying out maintenance work, the ignition
lead must always be disconnected and fastened
away from the spark plug in order to prevent the
engine from being started inadvertently.
IMPORTANT
1 Upper control arm
2 Motorstop lever
3 Starter cable
4 Upper part of catcher
bag
5 Lower part of catcher
bag
6 Lower parts of control
arm
7 Wheels
8 Housing
9 Cutting height
adjustment, front axle
10 Cutting height
adjustment, rear axle
11 Engine
12 Ejection flap
13 Cable clip
14 Rotary handle
15 Cable guide
16 Level indicator
17 Drive lever
2. Appliance overview
17
16
14
13
12
A
11
9
1
2
3
4
5
6
7
8
15
A
10
Technical Information 15.01 - Page 3 -
3. Cutting height adjustment
The new MB 410 and MB 415 lawnmowers feature
separate cutting height adjustment for the front and
rear axles.
The adjustment lever for front axle height adjust-
ment is located next to the left front wheel.
The adjustment lever for rear axle height adjustment
is located next to the left rear wheel.
4. Engine oil and fuel
Top up engine oil before initial start (oil dipstick).
Please consult the engine instruction manual for the
grade of engine oil to be used and the filling
quantity.
Note:
VIKING HD 15W-40 and VIKING SAE 30 are two
high quality motor oils specially formulated for use
in small four-stroke engines.
Checking engine oil
Check engine oil level at regular intervals.The oil
level must be within the marked field on the dipstick.
Screw the dipstick in fully to measure the level.
Fuel
Recommendation: Fresh good quality fuel, normal
unleaded petrol.
There are 7 cutting height adjustment settings
ranging from 25 to 70 mm.
Cutting levels 2 to 6 are standard.
Level 1 = lowest cutting height
Level 7 = highest cutting height
The engine must be switched off before adjusting
the cutting height.
Height adjustment:
First, push adjustment lever in direction of the wheel
and then allow to engage in the desired position
(= cutting height).
The cutting height indicators are located immediate-
ly next to the adjustment levers, on the housing or
on the catcher bag.
The cutting height settings on the front and rear
axles should be identical. Different cutting heights
result in a reduced collecting performance.
Technical Information 15.01 - Page 4 -
5. Maintenance
To avoid serious injury, the engine must always be
switched off when performing maintenance work on
the lawnmower.
Before carrying out maintenance work, the ignition
lead must always be disconnected and fastened
away from the spark plug in order to prevent the
engine from being started inadvertently.
Only use original spare parts.This applies to cutting
tools in particular.When replacing the cutting tools,
make sure the correct type is selected.
IMPORTANT
5.1 Adjusting the drive cable, MB 415
The cable may have to be re-adjusted due to wear
of the clutch or alteration of the cable length.
1
2
3
Maintenance interval: As required (when the
drive lever is pulled out, the drive will not
engage).
Adjustment is carried out with the engine switched
off.
Release lock nut 1.
Loosen adjustment screw 2until the correct
adjustment is achieved.
Correct adjustment:
Actuate the drive lever while pulling the lawn-
mower backwards.
The drive wheels must lock from approx. one third
of the lever travel.
Secure adjustment screw 2with locking nut 1.
1
2
Technical Information 15.01 - Page 5 -
IMPORTANT
5.2 Sharpening the mowing blades
5.3 Combustion engine
To achieve a long service life it is always particularly
important to have a sufficient level of oil and to
change the oil and air filters regularly (see engine
instruction manual).
The cooling fins must always be kept clean to
ensure that the engine is adequately cooled.
2
1
1
2
max. 5 mm
1
2
3
50 Nm
2
Maintenance interval: Every 25 hours of
operation
If mowing results deteriorate over time, the mowing
blade is probably blunt.
Mower blade disassembly:
Use a wood block 1(approx. 60 x 60 mm) for disas-
sembly, to counterhold the mowing blade
(see illus.).
Release blade bolt 2.
The following points must be observed when re-
sharpening the blade:
• Cool blade when sharpening, e. g. with water.
The blade must not be allowed to display blue
colouring, as this would reduce its cutting quality.
• Sharpen blade evenly to prevent vibration due to
imbalance.
• Check blades for damage before installing.The
blade must be replaced if notches or cracks are
identified, or if the blades are sharpened back by
5 mm (wear limit).
Mower blade installation:
Install the mowing blade with the vanes pointing
upwards into the housing channel.
For installation, use a wooden block 1
(approx. 60 x 60 mm) to counterhold the mowing
blade (see illus.).
Secure bolt 2with retaining washer 3to a torque of
50 Nm.
Observe the specified torque when tightening the
blade bolt, as the secure attachment of the cutting
mechanism depends on it.
1
2
Technical Information 15.01 - Page 6 -
- Engine will not start - Motorstop lever is not pressed
- No fuel in tank; fuel line blocked
- Inferior, dirty or old fuel in tank
- Dirty air filter
- Spark plug connector disconnected from
spark plug; ignition lead incorrectly
fastened to connector
- Spark plug dirty or damaged;
incorrect electrode gap
- Engine is flooded due to several starting
attempts
- Mower housing is blocked
- Press motorstop lever to handlebar
- Top up fuel, clean fuel line
- Always use fresh, good quality fuel,
normal unleaded petrol; clean
carburettor
- Clean air filter (see engine
instruction manual)
- Connect spark plug connector;
check connection between ignition
lead and connector
- Clean or replace spark plug; adjust
electrode gap (see engine
instruction manual)
- Remove spark plug and dry; pull
starter cable repeatedly with the
spark plug removed (throttle lever in
STOP position)
- Clean mower housing (disconnect
spark plug connector before
cleaning)
- Starting problems or
deteriorating engine
performance
- Mowing grass which is too long or too
wet
- Mower housing is blocked
- Dirty air filter
- Dirty spark plug
- Mowing blade is blunt or worn
- Water in fuel tank and carburettor;
carburettor blocked
- Work at appropriate cutting height
and mowing speed for mowing
conditions
- Clean mower housing (disconnect
spark plug connector before
cleaning)
- Clean air filter (see engine
instruction manual)
- Clean spark plug
- Re-sharpen or replace mowing
blade
- Empty fuel tank, clean fuel line and
carburettor
- No drive when clutch lever is
actuated
- Drive cable incorrectly adjusted - Re-adjust drive cable
(see instruction manual)
- Engine overheating - Cooling fins are dirty
- Oil level in engine too low
- Clean cooling fins
- Top up engine oil (see "Fuel and
engine oil" in instruction manual)
- Excessive vibration during
operation
- Uneven cut, lawn turns yellow
- Ejection chute blocked
- Blade bolt is loose.
- Engine mounting is loose
- Blade imbalance due to incorrect
re-sharpening or to deformation
- Mowing blade is blunt or worn
- The rate of feed is too high in relation to
the cutting height
- Mowing blade is worn
- Mowing grass which is too long or too wet
- Tighten blade bolt
- Tighten engine fastening bolts
- Re-sharpen (balance) or replace
blade
- Re-sharpen or replace mowing
blade
- Reduce the advance speed and/or
select the proper cutting height
- Replace the mowing blade
- Work at appropriate cutting height
and mowing speed for mowing
conditions
6. Troubleshooting
Fault Possible cause Remedy
Technical Information 15.01 - Page 7 -
7. Technical specifications
Unit MB 410 MB 415
Production identification 6336 6336
Engine, design 4-stroke combustion engine
Manufacturer Briggs & Stratton
Type Quattro 40 Quattro 40
10D902 10D902
Capacity ccm 158 158
Power kW/rpm kW/rpm 2.2/ 3000 2.2/ 3000
Fuel tank l 0.9 0.9
Type of cutting utilities cutter bars cutter bars
Cutting width cm 41 41
Speed of cutting utilities rpm 3000 3000
Guaranteed
acoustic power level Lw(A)
84/538/EEC dB(A) 94 94
Sound pressure level Lp(A)
81/1051/EEC measured at ear: dB(A) 80 80
Acceleration on the upper
Guide handle EN 1033-1 m/s210 10
Test speed rpm 3000 3000
Starter Cable start Cable start
Safety device Motorstop Motorstop
Tightening torque
Blade bolt Nm 50 50
Wheels f/r mm 180/ 180 180/ 200
Motive drive - 1 forward gear
Cutting height mm 25 - 70 25 - 70
Catcher bag l 60 60
L/W/H cm 146/ 46/ 102 146/ 48/ 104
Weight kg 23.5 26
Technical Documentation © 2001 VIKINGKufstein, 3rd May 2001
Technical Information 15.01 - Page 8 -
9. Spare parts list
A separate spare parts list is available for the MB 410 and MB 415 lawnmowers.
9.1 Standard spare parts
The standard spare parts are listed below. Optimum
performance and safety can only be ensured if origi-
nal spare parts are used. Repairs and maintenance
work may only be performed if proper procedures
are followed and all applicable safety requirements
are observed.
Quantity Description Part No.
1 Mowing blade 6336 702 0100
1 V-belt (MB 415) 6336 704 2100
8. Repair times
No. Repair procedure MB 410/
MB 415
1 Complete housing replacement 45
2 Axle (front) 10
3 Axle (rear) 10/ 20
4 Wheel (front) 5
5 Wheel (rear) 5
6 Height adjustment lever (front) 10
7 Height adjustment lever (rear) 10/ 20
8 Gearbox (MB 415) 30
9 V-belt (MB 415) 10
10 Changing blade 5
11 Blade mount 10
12 Changing engine 30
13 Ejection flap 5
14 Upper part of catcher bag 5
15 Lower part of catcher bag 5
16 Upper control arm 15
17 Lower control arm 5
18 Motorstop cable 15
19 Motorstop lever 5
20 Drive cable 10
21 Drive lever 5
22 Drive adjustment 5
The repair times indicated assume trained, qualified
staff and a perfectly equipped customer service
centre.
Repair times are given in minutes.
Dieses Handbuch passt für folgende Modelle
2
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