Weber mt PG 90 E Series Operating instructions

PG55_110E 1
PG 55 E/70E/90E/110E
0311/englisch/Übersetzung der Original-Betriebsanleitung
Operating and
Maintenance Manual
Weber Maschinentechnik GmbH
Im Boden 5 - 8, 10
57334 Bad Laasphe-Rückershausen / Germany
Telephone [phone] / 398-0
Fax [phone] / 398-101
E-Mail: [email protected]
Web: www.webermt.de

2 PG55_110E

PG55_110E 3
Table of contents
Introduction 4
Safety guidelines 5
Graphic presentation 8
Device description 9
Technical data 10
Activities prior to starting work 12
Starting 13
Troweling 14
Shutting down 16
Maintenance overview 17
Maintenance work 18
Operating uids and ll levels 20
Troubleshooting 20
Storage 21
Contact addresses 23

4 PG55_110E
Introduction
This operating and maintenance manual is designed to facilitate familiarization with your concrete
trowel machine, and to enable you to maintain the compactor and use it for its intended purpose.
When complying with the instructions in the operating and maintenance manual you help
avoid hazards, reduce repair and downtime costs, and increase the reliability and service life
of your concrete trowel machine.
This operating and maintenance manual must always be available at the implementation site of
the concrete trowel machine.
If necessary you can obtain additional information from your authorized WEBER dealer, or you
can obtain information from one of the contact addresses on the last page.
The valid conformity declaration is enclosed with every machine delivery.

PG55_110E 5
Safety guidelines
General
All safety instructions must be read and complied with, non-compliance results in
– Danger to life and limb of the user
– Impairments to the machine or other property.
In addition to the operating manual, the accident-prevention regulations in the country where
the appliance is used must be complied with.
Intended use
The concrete trowel machine should only be used in technically faultless condition, as intended,
in a safety-conscious and hazard-conscious manner, in compliance with the instructions in the
operating manual. Malfunctions that impair safety must be eliminated without delay.
Our PG concrete trowel machines are designed exclusively for troweling
– concrete
– screed.
Any other use of the trowel machine is considered to be non-intended use, for which the customer
is exclusively responsible. All liability is rejected if damage occurs due to non-compliance with
this provision. This risk is borne solely by the user.
Easily foreseeable misuse
Any use for which the machine is not intended.
Operation
Trowel machines are only permitted to be operated by suitable persons of at least 18 years of age.
Operators must be instructed in how to guide the trowel machine by the owner or by owner’s
assigned personnel.
The machine operator must comply with trafc regulations. If instructions that affect safety are given
by third parties, then the operator must be authorized to reject these instructions.
Unauthorized persons are forbidden from being in the area of the trowel machine during the
troweling process.
Protective equipment includes:
Hearing protection
Hard hat
Safety shoes
Protective equipment
This machine is capable of exceeding the permissible sound level of 80 dB(A). The owner might also
face additional dangers when using the machine. Precautionary action must, therefore, be taken.
Protective gloves

6 PG55_110E
Maintenance and repair work
Only use original Weber spare parts to ensure reliable and safe operation for maintenance
or repair work.
Adjusting tasks, maintenance tasks, and inspection tasks must be carried out on schedule
as specied in this operating and maintenance manual. These activities should only be executed
by instructed personnel.
For repair, maintenance, or inspection work the engine of the trowel machine must be safeguarded
against unintentional starting.
For maintenance and repair tasks the trowel machine must be placed on a level and stable substrate
and must be secured from rolling off or tipping over.
Heavy components and assemblies must be secured to and lifted by hoisting machines that can
bear their weight when they are replaced. Ensure that no hazard is caused by raising components
or assemblies.
Do not position yourself or work under suspended loads.
Operation
Prior to starting work the owner of the trowel machine must be familiar with the working environment.
The work environment includes obstacles in the work and trafc area, the bearing capacity of the
ground, as well as the necessary safeguarding of the construction site in the area adjacent to public
trafc; and it includes compliance with trafc regulations.
The trowel machine should only be operated when the protective xtures are mounted.
The protective xtures must all be in functional condition.
At least once per shift the trowel machine must be checked for apparent defects. If there are
apparent defects then operation of the trowel machine must be stopped immediately, and the
responsible person must be informed. Prior to restarting, trowel machine malfunctions that
have occurred must be corrected.
Always maintain adequate clearance to the edges of pits and embankments.
After work has been concluded, secure the trowel machine in accordance with statutory regulations,
particularly in the area of public trafc surfaces.
If lubricating oils and fuel come into contact with skin, they can cause skin cancer.
Upon contact with the skin, clean affected skin with suitable cleaning agent without delay.
Electrical voltage safety
It is prohibited to switch the trowel machine on or off by removing or inserting the connector plug
into or from the power outlet.
The connecting cable of the trowel machine must not be used to pull the plug out of the power outlet.
Protect electric cables against heat, oil and sharp edges.
Operating the trowel machine in an explosive atmosphere is prohibited.
When taking a break, shut off the trowel machine and set it down in such a way that it cannot
roll away or fall down inadvertently.
Every time you interrupt your work, you also need to disconnect the trowel machine from the mains
by pulling the power plug.
The device must not be operated in heavy rain. Observe the degree of protection of the
electrical components.

PG55_110E 7
Inspection
German social accident insurance (DGUV) regulations mandate that DGUV directive 3 be applied
during the testing of electrical installations and equipment.
Trowel machines must be inspected in accordance with appropriate implementation conditions
and operating conditions, as needed; however, an inspection to ensure operationally safe status
must be performed by an expert at least once a year. The results of the inspection must be recorded
in writing and must be stored at least until the next inspection.
Cleaning work
Cleaning tasks should only be executed in areas that are suitable and have been approved for
this purpose (oil separator amongst others).
Disposal
All operating uids and auxiliary materials must be disposed of in an environmentally-compatible
manner in accordance with country-specic regulations.
Warning against irritants or materials hazardous to health
Warning against a hazardous place
Warning against a suspended load
Wear ear protection
General regulation
Environmental protection
Important information for operating and maintenance personnel is marked by pictograms.
Hard hat
Safety shoes
Protective gloves
Behavior in case of faults
After coming into contact with high-voltage current lines:
– Do not abandon the machine
– Warn third parties against approaching and touching the machine
– Have voltage cut off
– Wait until the line is powered off

8 PG55_110E
1
2
8
9
3
5
6
4
7
Graphic presentation
Overall view PG
1 Engine
2 Protective frame
3 On/Off switsch
4 Handle
5 V-belt guard
6 Protective cage
7 Troweling blades
8 Adjusting lever/troweling blade adjuster
9 Hearing protection (sticker)
10 On/Off switch
11 Main switch

PG55_110E 9
Device description
The trowel machines of types PG 55 E through PG 110 E-2 are hand-guided machines that are used
to trowel and grind concrete and screed surfaces.
Drive
The machine is powered by an electric motor.
Function
The force generated by the engine is transmitted mechanically to the gearbox of the trowel machine
by a V-belt pulley and a V-belt. The troweling blades and the troweling pan attached to the gearbox
smooth the concrete or screed.
Operation
The electric motor is switched to operational readiness using the On/Off switch built into the control
cabinet of the trowel machine. You switch electric motor on and start the troweling process by
pressing the On / Off switch located at the manual guidance rod. The adjusting lever tted at the
manual guidance rod is used to innitely adjust the angle of the troweling blades.

10 PG55_110E
Technical data
PG 55 E PG 70 E PG 90 E PG 90-2 E PG 110 E PG 110-2 E
Weight
Operating weight CECE in kg 48 76 87 87 93 95
Dimensions
Overall length (in mm) 1575 2166 2241 2241 2366 2366
Protective ring diameter (in mm) 595 786 936 936 1186 1186
Height with folded manual
guidance rod (in mm) 900 900 900 900 900
Operating diameter (in mm) 563 750 900 900
Drive
Engine Electric Electric Electric Electric Electric Electric
Performance at operating speed in
accordance with ISO 3046-1 (kW) 1.5 2.2 3.0 3.0 3.0 3.0
Performance characteristics
Rotation (1/min) 100 95 95 48/95 75 37/78
Gear ratio 19,5 19,5 19,5 19,5 19,5 19,5
Degree of protection IP 44 IP 44 IP 44 IP 44 IP 44 IP 44
PG 55 E PG 70 E PG 90 E PG 90-2 E PG 100 E PG 100-2 E
Vibration values
Root-mean-square acceleration value
for hand-arm vibration ascertained in
accordance with EN 500 in m/s²
Troweling blades, position at 5.9 12.5 12.5 12.5 10.4 10.4
Troweling blades, position slanted 3.1 8.5 8.5 8.5 5.7 5.7
In accordance with directive
2006/42/EC, complying with
the vibration values is the
owner’s responsibility.

PG55_110E 11
2
1
3 4
56
1 Description 2 TYPE
.................................................... ...................................................
3 Serial number 4 Year of construction
.................................................... ....................................................
5 Mass 6 Rated power kW
.................................................... ....................................................

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1
2
1
Starting
Transport
Arrest the manual guidance rod (1) with the tommy screw (2).
Activities prior to starting work
When transporting the trowel machine on a vehicle,
secure it with suitable restraints.
Attach the crane hook (1) to the protective frame and lift
the machine onto the means of transport selected.
Only use lifting machines with a minimum bearing
capacity of 150 kg.
Do not step under suspended loads.
Connect the power cable to the mains.
PG 70 E/PG 90 E/PG 100 E
"Set the switch (1) to one of the two positions.
If the machine cannot be switched on or off at the
manual guidance rod, this will be due to a rotating eld
error.
In this case, set the switch (1) to the other position.
After waiting for 5 s. You will be able to switch the ma-
chine on."

PG55_110E 13
1
1
1
1
1
2
Troweling
Use the adjusting lever (1) to set the troweling blade to the
desired position.
Press the locking button (1) and push the lever (2) up.
Forward
Push the machine forward using the manual guidance rod (1).
Reverse
Pull the machine backward using the manual guidance rod (1).
Move to the left
Lift the machine up slightly using the manual guidance rod (1).
The frictional forces in front of and behind the drive shaft
are increased and decreased, respectively. A clockwise
rotational movement will cause the machine to move to
the left.
Only run machine within reach of the manual guidance
rod.

14 PG55_110E
1
1
Move to the right
Push the machine down slightly using the manual guidance rod (1).
The machine is caused to move to the right by the shift of
frictional forces at the rear (see above).
Troweling on the spot
Use the manual guidance rod (1) to keep the machine in the
horizontal position.
The frictional forces cancel each other out, causing the
machine to keep moving on the spot.
At obstructions (walls, pits, etc.), ensure that no one can be
caught between the machine and the obstruction; or ensure
that the machine does not slip into the pit.

PG55_110E 15
1
2
1
It is recommended to use a second trowel machine for surfaces with an area
exceeding 200 sqm.
The rst machine is then used for pre-troweling with a troweling pan.
The second machine is tted with troweling blades and used for ne troweling.
Possible applications
The trowel machine can be used for the machine-assisted troweling of concrete surfaces,
e.g. industrial oors, roller skate rinks, parking decks, sewage plants, basement and garage
oors, screed surfaces, etc.
The concrete surface is leveled. During this process, the concrete surface is compacted
due to a thorough rearrangement of the aggregate particles. Any shrinkage cracks and
pores that may have been brought about by escaping air are sealed. Minimum size
particles shift and settle in the cavities between the larger aggregates. The shifted particles
push any retained water to the surface, where it evaporates.
The number of passes required for pre-troweling cannot be specied exactly as this
number is inuenced by various factors (e.g. concrete consistency, ambient temperature,
humidity, etc.). Under normal conditions, however, one to two passes will sufce.
The right time for pre-troweling has come when a person
walking on the cured concrete surface no longer leaves
footprints behind.
Pre-troweling involves the process of grinding off any
unevenness caused by pouring the concrete and rubbing
the ground-off material into any cavities and recesses that
may exist in the oor.
Pre-troweling
The surface to be smoothed is pre-troweled with the
troweling pan (1).
For the rst few passes, the blade angle (a) is usually kept small. The blade angle
increases with the number of passes. A key factor during this process is the weight of the
machine. The wider the angle of the troweling blades and the higher the weight of the
machine acting on the troweling blades are, the harder and, thus, more resistant to wear
the surface is.
Fine troweling is applied when no more moisture can be
detected on the surface. For ne troweling the troweling pan
is substituted for the troweling blades.
The troweling blades (1) rotate across the concrete surface (2)
at relatively high pressure and at a certain blade angle (a).
Fine troweling requires that the surfaces have been
pre-treated with the troweling pan.
Fine troweling

16 PG55_110E
1
1
Shutting down
Release the lever (1).
Turn the switch to position “0”.
During breaks – even if they are short – the machine
must be shut down.
Parked devices that represent an obstacle must be
safeguarded through conspicuous measures.
Disconnect the connecting cable from the mains by
pulling the connector plug.
Observe the device’s protection class when cleaning the
machine.
None of the electrical components (engine, switches, etc.)
may be cleaned with a high-pressure cleaner.
Cleaning the machine

PG55_110E 17
Maintenance overview
Work must be carried out using regulation tools, and the operating and maintenance manual
must be complied with for all work.
All maintenance work: Select a collection vessel that is large enough to prevent oil from
spilling onto the ground. Dispose of waste oil in an environmentally friendly manner
(regulation on waste oils).
Dispose of oils, greases, cloths soaked in oil, and replaced parts with oil on them in an
environmentally friendly manner.
If lubricating oils and fuel come into contact with skin, they can cause skin cancer.
Upon contact with the skin, clean affected skin with suitable cleaning agent without delay.
If accessible during maintenance, check the condition and stability of all screws.
Maintenance interval Maintenance point Maintenance activity
After the rst
25 operating hours
– Re-tighten all accessible
threaded connections
every 150 operating hours Gearbox – Change semi-uid grease

18 PG55_110E
1
1
Checking the V-belt
Check the V-belt (1) for cracks, damaged anks, and wear.
If there is excessive wear – replace the V-belt as specied in
the repair manual.
Remove the V-belt guard (1).
Maintenance work

PG55_110E 19
Troubleshooting
Fault Possible cause Remedy
Machine does not start Operating error Execute the start process
as prescribed
The speed of
the troweling
blades / troweling pan
is too low
V-belt defective Change V-belt
A creepage current
can be detected on the
conductive parts of the
unit (leakage current)
Grounding conductor
not present
Check/replace connecting cable
Ground fault circuit inter-
rupter missing/defective
Power distribution on
site not grounded
Check/replace ground
fault circuit interrupter
Check power distribution on site,
provide for proper grounding of
power distribution on site

20 PG55_110E
Actions to be taken before long-term storage (longer than a month)
If the machine is to be stored for longer than six months, then contact the Weber service
organization to discuss additional measures.
Total machine – Clean thoroughly
– Check for leaks
– If there are leaks,
correct defects
Fuel tank – Empty fuel and ll with
clean fuel up to the lower
edge of ller neck
Engine – Check oil level, if necessary
ll to upper oil-level mark
– Check air lter, clean,
replace if necessary
– Check fuel lter,
change if necessary
All bare parts / gas lever / accelerator
control cable / fastening bolts
– Oil/grease