KREBER K-436-2 "TWIN" User manual

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MACHINES FOR INDUSTRIAL AND HOUSING CONSTRUCTION
* trowels * milling machines * vibrators * vibrating strips * soil compactors * petrol saws *
* grinders * spare parts * service *
87 – 200 Wąbrzeźno, ul. Okrężna 22; tel. [phone]
K – 436 -2
„TWIN”
T R O W E L
USER MANUAL

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DECLARATION OF CONFORMITY
MANUFACTURER: KREBER Maszyny Budowlane Sp. z o.o.
ul. Okrężna 22
87-200 Wąbrzeźno
The manufacturer declares with full responsibility that:
Trowel
Type: K-436-2 “TWIN”
with rated power of – 16,5 kW
and serial number ……………
measured sound power level L
wa (measured)
= 102with an incertainty of 0.6 dB
guaranteed sound power level L
wa
= 103dB
meets the following requirements:
•Council Directive 2006/42/EC of 17.05.2006, introduced into Polish legislation by the Regulation
of the Minister of Economy of October 21, 2008. on the essential requirements for machines
(Journal of Laws of 2008 No. 199, item 1228).
•Council Directive 2006/95/EC of 12.12.2006, introduced into Polish legislation by the Regulation
of the Minister of Economy of August 21, 2007 on the essential requirements for electrical
equipment (Journal of Laws of 2007 No. 155, item 1089).
•Council Directive 2004/108/EC of November 20, 2006, introduced into Polish legislation by the
Act of 13 April 2007 on electromagnetic compatibility (Journal of Laws of 2007 No. 82, item
556).
Details of the body that carried out the EC type-examination:
Instytut Zaawansowanych Technologii Wytwarzania (Institute of Advanced Manufacturing
Technology)
ul. Wrocławska 37a; 30-011 Kraków; Notification number: 1455
Person authorized to prepare and store PROXY
technical documentation
Michał Kubizna Marek Uciński
Wąbrzeźno on 31 March 2021

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To users
Handing the K-436-2 type trowel over for operation, we want to familiarize you
with its proper operation, construction, maintenance and scope of application for finishing
concrete surfaces. Before commencing operation, the technical supervision, department
manager and operator should read this manual.
Failure to follow these instructions may void your warranty.
We will be grateful for any suggestions regarding the opeartion of our products.
TABLE OF CONTENTS
1. Intended use and scope of application - p. 5
2. Safety instructions - p. 5
3. Technical characteristics of the trowel - p. 6
4. General description of the trowel - p. 6
5. Technical characteristics of the engine - p. 7
6. General description of the engine - p. 7
7. Activities before starting the machine - p. 8
8. Start-up of the machine - p. 8
9. Control of the machine - p. 8
10.Working position of the blades - p. 9
11.Mounting the trowel plate - p. 9
12.Replacing the blades - p. 9
13.Maintenance of the crosspiece - p. 9
14.User manual of HONDA engine - p. 10
15.Checking the oil level in the engine - p. 29
16.Recommended engine oil - p. 29
17.Reducer - p. 29
18.Activities after completion of work - p. 29
19.Machine storage - p. 30
20.Transport - p. 30
21.Technical inspection table - p. 30
22.Warranty card - p. 31

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1. Intended use and scope of application
K-436-2 type trowel is designed for troweling and smoothing resin, concrete and
hardened surface floors. Equipped with a comfortable seat for the operator, it prevents
footprints on floors. Two parallel gears equipped with crosspieces and blades increase the
machine’s efficiency to approx. 20m
2
/min. Quick and uncomplicated replacement of
blades and mashing plates significantly facilitates service and increases work efficiency.
2. Safety instructions
- An employee who has read the operating instructions may be allowed to work with
the trowel.
- Check the technical condition of the trowel before each start-up!
- It is forbidden to work with a machine that has damaged or disassembled covers
and protection elements.
- The operator should use ear protectors when working with the machine.
- Provide adequate ventilation of the rooms during work. The exhaust gas
contains toxic carbon monoxide. It is a colourless and odourless gas that can cause
loss of consciousness or death!!
- It is forbidden to use the machine in closed and potentially explosive rooms!!
- Stop the engine before each refuelling. In case of a fuel spill, remove it thoroughly
and do not start the engine before the residual fuel vapours evaporate.
- There is no risk of mechanical vibrations during the operation of the trowel.
- Do not use open fire during work and refuelling.
- Before starting troweling, check if the surface on which the machine is to work is
free from so-called "Foreign bodies" such as nuts, bolts, metal parts, protruding
reinforcement or expansion joints. They can cause serious damage to the machine and
endanger persons in the vicinity of the machine as well as the operator.
- The machine may only be transported with the engine switched off and the plate
removed.
- All maintenance work should only be carried out with the engine switched off.
- Repairs and overhauls may only be carried out by an authorized service centre or
the manufacturer.
The machine may not be used for work that is not in accordance with its
intended use!
DISREGARD OF THE ABOVE RECOMMENDATIONS MAY LEAD TO
SERIOUS DAMAGE TO HEALTH AND LOSS OF LIFE.

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3. Technical characteristics of the trowel
Type - K – 436-2
Drive - petrol engine
Weight - 325 kg
Efficiency - ~ 20 m
2
/min
Working dimension - 2 x Ø 900 mm
Transport dimensions - 1980 x 1300 x 1000 mm
The measured noise at the operator's workplace: - 87,0 ` 1,0dB (A)
The measured sound power of the device: - 102,0 ` 0,6dB (A)
Declared sound power level of the device: - 103 dB (A)
The value of the acceleration of vibrations affecting the operator: - 1,96 ` 0,13 (m/s
2
)
Vibration acceleration value affecting the operator (seat): - 0,7 ` 0,05 (m/s
2
)
4. General description of the trowel
1. Operator's seat 7. Side covers
2. Internal combustion engine 8. Control sticks
3. Blades adjustment knobs 9. Battery
4. Fuel tank 10. Front cover
5. Gas lever 11. Blades
6. Blade mounting shaft 12. Transport handle
Fig. 1

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5. Technical characteristics of the engine
Type - GX 690 - Honda
Ignition - Spark
Start-up - Electric
Fuel - Unleaded gasoline
6. General engine description
1. Air filter
2. Oil filler cap
3. Oil filter
4. Drain plug
5. Ignition switch
6. Choke lever
Fig. 2
Detailed information on operation and information about the engine is included
in the attached engine manual issued by the manufacturer.
Detailed information on handling and information about the battery is included
in the enclosed battery manufacturer's manual.
7. Actions before machine start-up
- check the technical condition of the trowel,
- check engine oil level,
- check oil level in gears,
- check battery status,
- refuel (unleaded petrol),
3
1
4
5
6
2

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- make sure that covers and safety devices are not damaged or removed. If they
are missing or damaged, do not start the machine,
- check the degree of wear of the blades and discs, in case of high wear replace
with new ones,
- check all screw connections,
- make sure the surface on which the machine is to work is free of "foreign
objects" (see safety instructions).
8. Start-up of the machine
The operator should take the seat. If the engine is cold, pull out the choke lever
and then start the engine by pressing the throttle lever. Do not keep the starter
switched on for longer than 10s. The machine should be started on idle gear "i.e. the
engine should not exceed 1500rpm." After increasing the engine speed to a
minimum of 2000rpm, the centrifugal clutch on the motor shaft transmits the drive
through a V-belt to the gearbox that simultaneously actuates the blades. The blade
rotation speed is adjusted by increasing or decreasing the pressure on the gas lever.
The engine should work on the so-called full throttle. Failure to do so may result in
damage to the centrifugal clutch.
9. Control of the machine
The operator should avoid making sudden movements with the control sticks
because it may lead to unevenness on the floor.
Figure 4 schematically illustrates trowel operation.
forward back left right
Fig. 3
10. Working position of the blades
This operation is performed by means of the adjustment knob (item 3 fig. 1).
The angle of the blades depends on the grade and degree of hardness of the floor.

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11. Mounting the trowel plate
The machine should be placed on the
plates (plate) in such a way that the blades are
under the clamping profile (Fig. 4) Then set
the angle of the blades according to the height
of the clamping profile with the adjustment
knob (Fig. 1, item 3).
Before transporting the machine, the
trowels must be removed!
Fig. 4
12. Replacing the blades
Should the blades wear, replace them with
new ones. Each of the blades is fixed with two M8
screws. When installing new blades pay attention
to the technical condition of the bolts (thread) and
spring washers. If damaged, they should be
replaced. The heavy load that occurs during
operation of the machine can cause the blades to
tear off, endangering people nearby.
Fig. 5
13. Maintenance of the crosspiece
Before starting the machine daily,
lubricate the cross with a grease gun (item
1 fig. 6).
Fig. 6

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14. User manual of HONDA engine