Page 1
OWNERS
MANUAL
Multiple Application Concrete Saw
GC55 and GC25E
MODEL:
FORM <<GC55-GC25E rev 4/2010
Page 2
WARRANTY
Norton warrants all products manufactured by it against defects in
workmanship or materials for a period of one (1) year from the date of
shipment to the customer.
The responsibility of Norton under this warranty is limited to
replacement or repair of defective parts at Norton's Stephenville,
Texas factory, or at a point designated by it, of such part as shall
appear to us upon inspection at such point, to have been defective in
material or workmanship, with expense for transportation borne by
the customer.
In no event shall Norton be liable for consequential or incidental
damages arising out of the failure of any product to operate properly.
Integral units such as gasoline engines, electric motors, batteries,
tires, transmissions, etc., are excluded from this warranty and are
subject to the prime manufacturer's warranty.
This warranty is in lieu of all other warranties, expressed or implied,
and all such other warranties are hereby disclaimed.
Important: Before placing equipment in operation, record the following
information.
MODEL:_________ SERIAL NO.___________
PURCHASE FROM: _____________________
ADDRESS: ____________________________
CITY_______ STATE ______ ZIP ________
TELEPHONE NO. ______________________
Before using this equipment, make sure that person using it
read and understand the instructions in this owner’s manual.
2
Page 3
Table Of Contents
CONTENTS PAGE
I. Preparation
A. Safety Precautions 4-6
B. Assembly 7
C. GC55 and GC25E Series Concrete Saw Specifications 8-9
D. Engine GC55 Models 10
E. Electrical Connections GC25E 11-12
Wiring Diagram GC25E 12
II. Operation
A. Installing The Blade 12-13
B. Starting The Engine GC55 13
C. Operating The Saw 13-15
D. Cutting Technique 15
E. Green Concrete Cutting 15-18
III. Maintenance
A. Engine 18
B. Bearings 19
C. V-Belts 19-20
D. Depth Control 21
E. Dust Removal System Adjustment 22
IV. Parts List Section
A. Ordering Information 23
B. Parts Drawing / Service Parts List 24-38
Blade Guard Assembly GC55 and GC25E 24
Cutting Head Assembly GC55 and GC25E 25
Blade Shaft Assembly GC55 and GC25E 26
Depth Control Assembly GC55 and GC25E 27
Engine Assembly GC55 Only 28
Motor Assembly GC25E Only 29
Frame Assembly GC55 Only 30
Frame Assembly GC25E Only 31
Front Pointer Assembly GC55 and GC25E 32
Main Assembly GC55 Only 33-35
Main Assembly GC25E 36-38
Read Owners Manual Before Use
Safety Alert Symbol: Information Following This Symbol Is
Very Important.
Use Only Norton Diamond Blades
3
Page 4
I. PREPARATION
A. Safety Precautions
Important! The following safety precautions must always be observed.
Hazard Symbols
Fuel (gasoline) is extremely flammable and its vapors
can explode if ignited. Store gasoline only in approved
containers, in well-ventilated, unoccupied approved
areas, and away from sparks or flames. Do not fill the
the engine near spilled fuel.
Engine components can get extremely hot from operation. To
prevent burns, do not touch the engine or related parts while the
engine is running or immediately after it is turned off. Never
operate the engine with any heat shields or guards removed.
Keep all guards in place when operating any piece of
equipment
Keep hands, feet, hair, and clothing away from all rotating parts
Lethal Exhaust Gas use only in well ventilated areas. Engine
exhaust gases contain poisonous carbon monoxide, which is
orderless, colorless, and can cause death if inhaled. Avoid
inhaling exhaust fumes, and never run the engine in a closed
building or confined area
Never tamper with the governor components of settings to
increase the maximum speed. Severe personal injury and
damage to the engine or equipment can result if operated at
speed above maximum. Always obey the maximum speed
rating of blade.
fuel tank while the engine is hot or running. Do not start
Never use the fuel as a cleaning agent
DO NOT LIFT THE SAW BY THE HANDLE BARS
4
Page 5
Dust and Silica Warning
Grinding/cutting/drilling of masonry, concrete, metal and other materials can
generate dust, mists and fumes containing chemicals known to cause serious or
fatal injury or illness, such as respiratory disease, cancer, birth defects or other
reproductive harm. If you are unfamiliar with the risks associated with the
particular process and/or material being cut or the composition of the tool being
used, review the material safety data sheet and/or consult your employer, the
material manufacturer/supplier, governmental agencies such as OSHA and
NIOSH and other sources on hazardous materials and make certain to comply
with all product warnings and instructions for the safe and effective use of the
material being cut. California and some other authorities, for instance, have
published lists of substances known to cause cancer, reproductive toxicity, or
other harmful effects.
Control dust, mist and fumes at the source where possible. In this regard use
good work practices and follow the recommendations of the
manufacturer/supplier, OSHA/NIOSH, and occupational and trade associations.
Water should be used for dust suppression when wet cutting is feasible. When
the hazards from inhalation of dust, mists and fumes cannot be eliminated
through engineering controls such as vacuum and/or water mist, the operator and
any bystanders should always wear a respirator approved by NIOSH/MSHA for
the material being cut.
Use Approved:
Eye Protection Hearing
Protection
Respiratory
Protection
5
Head Protection
Page 6
1. Before mounting any blade on the saw, the blade should be inspected for
any damage which might have occurred during shipment, handling or
previous use.
2. The blade collars and arbors should be cleaned and examined for
damage before mounting the blade.
3. The blade must be properly fitted over the arbor with the drive pin on the
outside collar projecting through the drive pin hole on the blade and
inside collar.
4. The blade shaft nut, which is a left-hand thread nut, must be tightened
securely against the outside blade shaft collar.
5. The blade must be operated within the specified maximum operating
speed listed on the blade.
6. The blade guard must be in place with the nose guard dow n and locked
when the saw is running.
7. The operator should wear safety glasses and any other appropriate
safety equipment.
8. When starting the saw, the operator should stand away and to the side of
the blade.
9. If for any reason the saw should stall in the cut, raise the blade out of the
cut. Check the outside blade shaft collar and nut for tightness. Inspect
the blade for damage before restarting the saw. Use caution when
resuming a cut. Be certain that the blade is in alignment with the
previous cut.
10.During cutting operations, do not exert excess side pressure on the
handles as a method of steering. Do not force the blade into the cut by
lowering the blade too fast or by pushing the saw too fast.
You Are Responsible For Your Safety!!!
6
Page 7
I. PREPARATION
B. Assembly
The GC55 and GC25E compact concrete saws are shipped completely
assembled and ready for use except for diamond blade, gasoline, oil, and
Handle Bar position for the GC55 and diamond blade, electrical extension
cord, and power supply for the GC25E. Inspect the saw for shipping damage.
If any damage is found, contact the shipper immediately and file a freight
claim. Saint-Gobain Abrasives, Inc. is not responsible for any freight-related
damages.
Adjust the Handle Bars Position:
1. Remove the GC55/GC25E from the box.
2. Remove the Quick Release Pin P/N: 241055 out of it’s retaining hole
3. Loose the Black Knob P/N: 241054.
4. Rotate the Handle Bar from the lowered storage position to the desired
position.
5. Align the hole in the Handle Bar with the holes in the frame.
6. Attach the Quick Release Pin P/N: 241055 by pushing it through the
hole in the Frame and then the hole in the Handle Bar. Make sure that
the Quick Release Pin passes all the way through both sides of the
Frame.
7. Tighten the Black Knob P/N: 241054.
Read and understand the remaining sections of this Owner's Manual. NOTE:
Do not install the blade until it is time to use the saw. ANSI regulations
prohibit the transportation of any concrete saw with the blade installed.
Part # Description QTY
241054 SCR 5/16-18 UNC X 2-1/2" CARRIAGE BOLT 1
241055 PIN QUICKRELEASE 5/16" X 2" GRIP LENGTH 1
241054 KNOB M8 X 1.25 ADJUSTABLE 1
232110 WASHER M8 DIN125 FLAT 1
241055 WASHER 3/8 WAVE 1
7
Page 8
C. GC55 and GC25E Series Concrete Saw Specifications
Dimensions/Weight
Length (Working) 42-23/32” (1,090mm) 42-23/32” (1,090mm)
Length (Transport) 32” (813mm) 32: (813mm)
Width 18-1/8" (460mm) 18-1/8" (460mm)
Height 42-23/32” (1,090mm) 42-23/32” (1,090mm)
Frame Width 18-1/8” (460mm) 18-1/8” (460mm)
Pointer Length 8-7/32” (209mm) 8-7/32”(209mm)
Blade To Wall 7-1/2” (190mm) 7-1/2” (190mm)
Wheel Base Length 19” (483mm) 19” (483mm)
Blade Shaft Maximum Height 9-41/64” (245mm) 9-41/64” (245mm)
Weight Created 135 lbs (61 kg) 155 lbs (71 kg)
Weight Uncreated 115 lbs (52 kg) 135 lbs (61 kg)
Power Source
Engine/Motor Mfg. Honda Gangfon Motor
Spec No. GX160K1QXC Totally Enclosed Air Cooled Thermal
Power Source Single Cylinder 4 Cycle Gasoline Electric
Maximum Horse Power* 5.5 HP (4.1 kW) 2-1/2 HP
Net Horse Power 4.5 HP (3.4 kW) 2-1/2 HP
Max Torque 7.6 lb-ft (10.3 Nm) @ 2500 rpm -NAPower Source RPM 3,600 RPM 3450 RPM
Model GX160 Dual Voltage
Cooling System Forced Air Forced Air
Oil Capacity 0.6 liter (0.63 US qt) -NAFuel Capacity 3.1 liter (3.28 US qt) -NAFuel Type Unleaded Gasoline (86 pump octane) -NALow Oil Sensor Yes -NAAir Filtration Four Stage Cyclone -NAVoltage -NA- 115-230 volts
Cycles/Current/Phase -NA- 60Hz/AC/1
Full Load Amps (115/230 volts) -NA- 15/7.5 Amps
Starting Amps (115/230 volts)2 -NA- 45/22.5 Amps
Displacement 9.9 in3 (0.16 l) -NABore x Stroke 2.7” (68mm) x 1.8” (45mm) -NAStarter Manual Capacitor
Characteristics
Max Blade Ø10" (254mm) Ø10" (254mm)
Depth of Cut 10” (254 mm) 3.5" (88mm) 3.5" (88mm)
8” (203 mm) 2.5" (63mm) 2.5" (63mm)
Arbor Bore 5/8" 5/8"
Blade Shaft Flange Diameter 3-5/64” (78mm) 3-5/64” (78mm)
Blade Shaft Speed 2905 rpm 2905 rpm
Depth Control Hand Wheel With Screw Feed Hand Wheel With Screw Feed
Depth Lock Standard Standard
Depth Gauge Standard Standard
Number Of V-Belts 1 1
Blade Guard Type Screwed On, All Steel Construction Screwed On, All Steel Construction
Cutting Side Center Center
Lifting Bale Built In Built In
Handle Bars Adjustable, Stays Level At All Times Adjustable, Stays Level At All Times
Wheels Non-marking Non-marking
Wheel Size Front and Rear 3-3/8”x2-3/4”x25/32” (85x70x20mm) 3-3/8”x2-3/4”x25/32” (85x70x20mm)
Sound pressure3 88 db (A) -NASound power3 105 db (A) -NA-
1)Net Horsepower Rating provided by engine the manufacturer measured in accordance to SAE j1349 @ 3,600 RPM. The engine may vary from this value.
Actual horsepower on the machine will vary due to operating speed of engine, belt tension, environmental conditions, machine maintenance, and other variables.
2) Starting Amps are instantaneous – for best results use with a 30Amp circuit.
3) The sound measures have been made following pr EN 12638, Annex A; - 2 “Floor sawing, grooving and milling machines – Safety “
GC55 GC25E
Protection
8
Page 9
The GC55 and GC25E concrete saws where designed from the ground up to be
a High Performance Multiple Application saw. The GC55 and GC25E are
capable of cutting Green Concrete (Early Entry), Cured Concrete, Asphalt, and
Decorative Concrete. Being able to cut more than just green gives the GC55 and
GC25E many advantages over the competitor’s machines such as a lower
investment for our customer.
Use For Cutting Multiple Applications:
Green Concrete (Early Entry)
Decorative Concrete
Cured Concrete
Asphalt
Features that make the GC55 and GC25E a High Performance Multiple
Applications Saw:
• Blade in center line of saw helps to reduce tearing of concrete when
cutting green concrete. The center line blade also helps the GC55 and
GC25E to roll straight while cutting due to the blade being parallel to the
blade.
• Reinforced all steel frame reduces bending, flexing, and vibrations which
can damaged the concrete. The reinforced all steel frame is also stronger
than the competitive models
• Soft Silicone Rubber wheels that are based off of a Norton Patient to
absorb vibrations that can create spalling and machine movement. The
wheels also feature a concave profile that helps the machine to roll over
small objects with out upsetting the blade.
• 10” maximum blade capacity with standard 5/8” arbor. The GC55 and
GC25E can use with 7” to 10” diameter Norton blades.
• Hand Wheel with Depth Adjustment Screw & Depth. Allows precise depth
adjustments up to 3-1/2” deep when used with a 10” blade.
• Fully adjustable non-scratching Dust removal system helps stabilize the
GC55 and GC25E by pushing debris way from wheels and undercarriage
of the machine.
• Front and rear pointers for precise alignment.
• Handle Bar and Pointer folds up for compact easy transport.
• Light in weight, the GC55 weights only 115 lbs.
• The GC55 and GC25E are very simple machines to operate.
• The GC55 and GC25E are designed for cutting Multiple applications:
Green Concrete (Early Entry), Cured Concrete, Asphalt, and Decorative
Concrete.
• Includes a free 10” GMAX blade. The GMAX blade is specifically
designed with the following features for improved Green Concrete cutting:
o Anchor Slot Core Technology Reduces Chip Causing Vibrations.
o Thicker Core Resist Flexing and Bending For Improved Cut Quality.
o Optimize Bond And Diamond For Fast Green Concrete And
Aggregate Cutting.
9
Page 10
D. Engine GC55 Models
Prior to attempting to operate the engine, read the information
contained in the engine owner's manual. An engine owner’s manual is
supplied with every gasoline powered concrete saw.
1. Check Oil: Add oil if low. Refer to the engine owner's manual for the
recommended SAE viscosity grades. Capacity of oil is 0.6 liter (0.63 US
qt.)
2. Check Fuel: Fill if low. Use only unleaded gasoline with a pump sticker
octane rating of 86 or higher is recommended. Never use an oil and
gasoline mixture!
3. Air Cleaner: Never run the engine without the air cleaner! Rapid engine
wear will result from contaminants being drawn through the carburetor and
into the engine.
4. Engine Starting: Refer to the engine owner's manual for proper engine
starting procedure.
E. Pointer Alignment
1. Use a straight edge, and carefully mark a line 12 feet long on a smooth
level surface.
2. Place the saw blade on the marked line, move the saw to the center of the
marked line and then lower the blade until it is about 1/16” above the
marked line.
3. Measure from each end of the saw frame to insure that the frame is
parallel to the marked line. Adjust the saw as needed.
4. With the blade centered on the marked line and the saw frame parallel to
the marked line, lower the front pointer.
5. Adjust the nylon nuts until the pointer is aligned with the marked line.
10
Page 11
E. Electrical Connections GC25E
Important-Before connecting the motor leads to the power supply be
sure that the voltage, cycles and phase shown on the nameplate of the
motor correspond to the available power supply. Voltage Selection for
the GC25E 3 HP motor is single phase saw motors witch have a dual voltage
capable. Either a 115-volt or 230 volt power supply can be used. To change
voltage simply move the voltage change switch located on the front of the motor
to the required voltage, no rewiring is required. Wherever possible, use 230-volt
power supply for best operation.
Failure to run the motor on the proper voltage will damage the motor and
is not covered under warranty. Improperly wired motors are not covered
under warranty.
The GC25E models are wired for 115 Volt from the factory!!!
Power Connections
Connect the power supply to the pigtail leads of the switch. Direct wiring
connection is preferred, but an extension cord with an electrical plug with 30-amp
minimum capacity may be used. A 30-amp circuit breaker is recommended.
Connecting wires should be as short as possible and in one piece. In no case
should the connecting wires be longer than shown in the following table for use
with the GC25E Single-phase motors:
Wire Gauge 115 Volt 230 Volt
Number 12
Number 10
Number 08
Caution-When wires that are too small gauge or too long are used, loss of
power, over heating, or possible damage to the motor will result. Damage
or failure of motors due to incorrect power supply cord lengths are not
covered under any warranty.
Always use the proper wiring connectors that are UL/CSA approved to
attach the motor to the electrical supply. Any wiring hook ups should be
made by qualified personal and made to National Electrical Code and to
any Local Codes.
25 ft (7.6 m) 100 ft (30.5 m)
50 ft (15.2 m) 150 ft (45.7 m)
75 ft (22.9 m) 175 ft (53.3 m)
Length Of Wire
Generators:
If a generator must be used, it must be of 8kW or larger. The generator must
have a 30A circuit and capable of providing a minimum of 8kW at the required
voltage. Under size generators will cause motor damage and is not covered
under warranty.
11
Page 12
Wiring Diagram GC2E Only
Thermal Reset:
If the thermal reset engages this is a sign that the motor is over heating.
Continued over heating will damage the motor. The thermal reset will
reset it’s self once the motor is cooled. Do not force the thermal reset as it
will damage the reset and motor. The causes of the thermal reset
activating are:
1. Too Long or Too Thin of Extension Cord (Low Voltage). Use
the correct length and gauge of Extension Cord.
2. Low Voltage Power Supply. Use a power supply with the
correct voltage.
3. Incorrect Blade of Application. Contact Norton Clipper’s
customer service or your local sales person for the correct blade
specification for your cutting application.
4. Overloading Machine. At a shallower depth. Make multiple
passes (Step Cutting) at no more than 1-1/4” deep. Cut at a
slower forward speed.
Damage or failure of a motor due to continued over heating as the result
of incorrect extension cord length/size, incorrect power supply, incorrect
application, and continued overloading is not covered under warranty.
.
II. OPERATION
A. Installing the Blade
1. Disconnect the spark plug (GC55 Models Only)
2. Raise the Blade Guard to its highest position.
3. Open the blade nut access door. Remove the blade shaft nut (Turn
clockwise) and remove the outside collar and raise the Blade Guard.
12
Page 13
4. Clean off any foreign particles on the clamping surfaces of both collars
and on the mounting surface of the blade.
4. Position the blade beneath the cutting head and slide the blade into the
blade guard (slide the blade under the blade guard at an angle will simplify
the installation process). Be careful not to hit the blade shaft with the
blade.
5. Locate the blade shaft then slide the blade bore hole onto the blade shaft.
Use only Norton Diamond Blades. This machine was not designed for
the use with abrasive blades. For the best performance when cutting
green concrete use the Norton GMAX series blade.
6. Slide the outside blade shaft collar onto the blade shaft.
7. Tighten the blade shaft nut (Turn counter-clockwise) securely against the
outside collar. Close the blade nut access door.
8. Reconnect the spark plug (GC55 models only).
Use Only Norton Diamond Blades
B. Starting the Engine GC55
1. Refer to the engine owner's manual for the proper starting procedures.
2. Always cut with engine rpm in the full throttle setting.
C. Operating the Saw
1. For blade installation instructions see section II. Operation sub heading
A. Installing the Blade. For the engine starting instructions (GC55), see
the Engine manual and follow the instructions located in section II.
Operation sub heading B. Starting the Engine and for Electrical
Connections (GC25E) see section E. Electrical Connections GC25E
2. Check the Engine Oil level (GC55 only).
3. Raise the saw to the full upright position. Do not let the blade come in
contact with the ground.
4. Maneuver the saw to the desired starting point.
13
Page 14
5. To start the machine
a. GC55: Follow the instructions for starting the engine found in
the Engine manual.
i. Verify that the emergency stop switch is in the up
position
ii. Turn Engine On/Off Switch to the on position
iii. Turn the Fuel Control to the On position
iv. Engage Choke as necessary
v. Pull start rope. If the engine does not start within 3-5
pulls of the start rope, refer to the engine owner’s
manual for more information.
b. GC25E: For Electrical Connections, Extension Cord Set
Information, and Generator Information see section E.
Electrical Connections GC25E
i. Verify that the motor voltage change switch is set to
the same voltage as the circuit.
ii. Verify that the circuit has a 30 Amp breaker installed.
iii. Verify that the extension cords are the correct gauge,
length, and are properly grounded.
iv. Verify that the GC25E power switch in the off position.
v. connect the extension cord set to the machine and
power supply. Follow all local and national electrical
code. If unsure of how to connect the extension cord
set or of the electrical circuit have a qualified
Electrician make all electrical connections.
vi. Move the start switch to the On position and the motor
should start. If the motor doe not start have a
qualified Electrician inspect all electrical connections
and the power supply
6. For the GC55 be sure the engine is running at full throttle!!!
7. Slowly lower the blade by rotating the hand wheel clockwise until the
desired depth of cut is reached. Use a reasonable rate of feed. Do not
force the blade into the cut!! If the engine starts to die slow down the rate
of feed! If the machine tries to climb out of the cut, slow down the rate of
feed!
8. When the end of the cut is reached, slowly raise the blade out of the cut by
rotating the Hand Wheel counter-clockwise until the blade is at least one
(1) inch above the ground.
9. Only move the saw in reverse with the blade in the raised position.
14
Page 15
10. When moving the saw to a new location, be sure the blade is not touching
the ground. Always pay close attention to where you are moving and
where the blade is at all times.
D. Cutting Technique
Lower the blade into the concrete to the required depth by turning the hand
wheel clockwise.
Push the saw steadily forward using the front pointer as a guide. Exert
enough forward pressure so that the engine begins to labor, but does not slow
down. If the saw begins to stall, reduce the forward movement until full rpm is
restored to the blade. If the saw stalls, raise the blade out of the cut before
restarting. Avoid excessive side pressure or twisting of the blade in the cut.
When cutting for best performance do not cut at more than 1-1/2” deep per
pass. Making multiple shallow passes will increase blade life, speed of cut,
and decrease engine/motor loads.
Additional Guide Lines For Sawing:
• Understand and follow all of the instructions in this owner’s manual.
• In critically hard aggregate, be careful not to feed too quickly as it may stall
the saw or ruin the cut.
• If the saw stalls in the cut, immediately stop the forward speed and raise
the blade out of the cut. If this is not done the belts can fail or the blade
may be damaged.
• Go slowly with a new blade until it opens up, that is, until the diamonds
can be seen and felt.
E. Green Concrete Cutting
The new Norton Clipper GC55 and GC25E are much more than a green
concrete saw or as it is some times called an early entry saw. The GC55 and
GC25E where designed from the ground up to be a High Performance
Multiple Application saw. The GC55 and GC2E models are capable of cutting
Green Concrete (Early Entry), Cured Concrete, Asphalt, and Decorative
Concrete. Being able to cut more than just green gives the GC55 and GC25E
many advantages over the competitor’s machines such as a lower investment
for our customer.
15
Page 16
Green Concrete Cutting Important Considerations
Green concrete is concrete that is still in a plastic state that is the concrete
still has a lot of moisture in it, in other words it is not fully cured or dry. As the
concrete starts to hydrate (Dry or Cure), the concrete will change slightly in
volume. Concrete normally shrinks about 1/16” for each 10 feet during the
hydration process. This change in size creates internal stress in the concrete
which will develop into cracks. Joints also known as Crack Control Joints and
or Expansion Joints are normally cut into the concrete in order to relieve the
internal stress and to create an area where a controlled crack will occur. With
the joint in place the concrete will normally crack in a straight line underneath
the joint. The idea behind cutting the green concrete is that the sooner the
stress relieving joints are made the better control over the random cracking
will be obtained. For most green cutting the depth of cut is made at 25% of
the overall thickness of the concrete, for example if the concrete is 6” thick,
the cutting depth would be set to 1-1/2” deep. One important fact to
remember is that Green Concrete is any concrete that has set up but not
hardened. For concrete to become fully hardened it may take 5 to 7 days.
There are a few factors that affect green concrete cutting quality, and time
that the cutting can begin. The following list is extremely important to follow
and to understand in order to create a good quality cut with no spalling or
chipping of the cut line.
1. The concrete must set up long enough to hold the aggregate in place. If
not the aggregate will tumble and move when the Diamond Blade contacts
it, causing internal damage to the concrete and possible tearing or spalling
of the concrete surface. The aggregate along with the concrete must be
cut for proper crack control. With out proper set up the aggregate will roll
or move within the concrete creating voids and spalling or chipping of the
cut line will occur. Concrete set up is the MOST important issue to
obtaining a quality cut line when green concrete cutting. Factors that
affect the concrete set up are:
a) Concrete Mixture – PSI, concrete type, sand type and amount, and
other materials.
b) Water to Cement Ratio – more water the longer the set up
c) Aggregate Size and Type
d) Concrete Additives – some speed up while others slow down the set
up time.
e) Environmental Factors – Sun, Wind, Rain, Temperature
f) Concrete Temperature – cooler the concrete the longer the set up time.
2. Flat surface. Flat surfaces help to insure that the blade is perpendicular to
the concrete which reduces the chances of damaging the concrete
16
Page 17
surface. When the blade meets the concrete surface at a 90° angle
(perpendicular) less side drag is created on the blade. When the blade is
not perpendicular side drag is create that will cause the concrete to chip or
spall.
3. Blade that is designed for green concrete cutting. The GMAX blade has
some unique features that make it an outstanding blade for green concrete
cutting such as:
a) Anchor Slot Core Technology that reduces vibrations in the blade.
Excessive vibrations will cause the blade to flutter or bend from side to
side which will damage the concrete surface and cause the blade to
wear out prematurely.
b) Thicker core that resist flexing and bending. Thin core blades bend
due to excessive pressure during cutting and from over heating. When
blade bends and flexes the concrete and blade will be damaged.
c) Optimized bond and diamond for fast green concrete cutting. The
improper bond will not cut green concrete properly.
When to Start Green Concrete Cutting
Timing is the most important aspect of cutting green concrete. The time that
the operator can start cutting will vary depending on the key factors listed
above. For example if the concrete has a high water to cement ratio or the
day is cooler then more time is required for the concrete to properly set up
and hold the aggregate in place. Typically we are finding that starting around
5 to 6 hours after finishing good results can be obtain. We find in our testing
that at 16 hours in gives the best results. These times to start are assuming
that the concrete has set up long enough to hold the aggregate in place.
Green Concrete Cutting Trouble Shooting
Spalling or Chipping On Both Sides of Cut:
1. Wait at least 1 to 2 more hours before cutting. The very good cut
appearance is achieved at 5 to 6 hours after finishing complete. The best
cut appearance occurs when the concrete has set up enough for the
aggregate to be held in place which may take up to 16 hours. The actual
time to begin cutting will depend on many factors such as: concrete
mixture (PSI, concrete type, sand type and amount, and other materials,
water to cement ratio – more water the longer the set up), aggregate size
and type, concrete additives – some speed up while others slow down the
set up time, environmental factors (Sun, wind, rain, temperature), concrete
temperature (Cooler the concrete the longer the set up time).
17
Page 18
2. Check blade specification. The improper blade specification will create
additional spalling or chipping of the concrete. For best results use a
Norton GMAX series Blade. The Norton GMAX series have unique
features to improve the green concrete cut quality and the overall
efficiency of the blade while cutting green concrete. The GMAX blade
provided with the GC55 was designed exclusively for use on this product
to provide maximum performance and a precision cut appearance!
3. Check blade for wear. As the blade loses width the cut appearance will
get worse. Blades with segments that look like a knife blade need to be
replaced immediately as a blade in this condition will create a poor quality
cut line.
4. Check concrete surface for flatness.
5. Replace the blade with a new blade of the same specification.
6. Replace blade with the correct specification.
Cut Appearance Previously Fine But Now Constantly Spalling or
Chipping On One Side Of The Cut:
1. Check for warped blade. A warped or out of tension blade will create a
cut that has spalling and chipping. Replace blade if necessary.
2. Check the tracking on saw.
3. Check that the machine is being pushed in a straight line.
Thin Shell Chipping of Concrete:
1. Wait 1 to 2 hours for the concrete cure depth to increase. Shell chipping
is caused when the top layer of concrete is curing at a faster rate than the
concrete below. The concrete needs to cure to a deeper depth in order to
prevent the shell chipping.
III. MAINTENANCE
A. Engine GC55
Follow the below schedule for engine maintenance. NOTE: Check the Honda
Engine manual that came with the engine for any changes to the maintenance
schedule. If the charts have any differences, follow the chart in the Honda
Engine Manual. The Norton Company does not warranty the engine. If any
warranty or service of the engine is required contact your nearest Honda
18
Page 19
nearest Honda service center, or from the Internet: http://www.honda-
engines.com/home.htm
Honda engine (Refer to owner's manual for complete maintenance.)
Check the engine oil level before each use when the engine is cool and the
engine is level. Add oil if the level is low. The oil level should be within the
operating range (See the engine owner’s manual for details).
Only use a high-detergent, premium quality motor oil certified to meet or
exceed U.S. automobile manufacturer’s requirements for Service
Classification SG, SF/CC, CD. Motor oils will show the classification on the
container. A SAE viscosity of 10W-30 is recommend by Honda for general,
all temperature use. Please consult the below chart or contact your local
Honda service center for the proper viscosity for your temperature range.
19
Page 20
Always refer to the engine manual for more detailed information on checking
the oil, changing oil, and oil capacity, air filter changes, and fuel type to use.
Use only Honda air filters. Do not clean the air filter with gasoline or other
flammable solvents. A fire or explosion could result. To clean, follow the
instructions found in the Honda engine manual.
Dry Cutting Engine Maintenance
• When operating the engine in dry cutting or dusty environments the
following is required:
• Engine oil changed more often.
• Every 50 hours (or more often if conditions require) clean all of the engine
cooling fins.
• Every 25 hours (or more often if conditions require) clean the engine precleaner.
• Every 100 hours (or more often if conditions require) replace the air filter.
If the engine is equipped with a reusable air cleaner, clean and re-oil it.
• Check and clean the air filter after each use. Replace as needed.
B. Bearings
The GC55 and GC25E are equipped with permanently sealed blade shaft and
wheel bearings that will never need any lubrication. These types of bearings
are designed for long life and minimum maintenance. If any problem occurs
with the blade shaft, or wheel bearings replace the bearing.
The only the Raise Screw and Cutting Head pivot point will need periodic relubrication. Both of these points require just a squirt of a good quality NLGI
#2, aluminum complex type grease is recommended one time a month.
Check the function of the Hand Wheel and Cutting Head before each use.
Lubricate the Raise Screw and Cutting Head pivot point once a month or
when the it becomes hard to turn the Hand Wheel.
C. V-Belts
Warning: Never make adjustments to belts or pulleys while
engine is running!
1. The best tension for a belt drive is the lowest tension at which the belts will
not slip under full load.
2. Simply take up the drive until the belts are snug in the grooves. Run the
drive for about 15 minutes to "seat" the belts. Then impose the peak load.
If the belts slip, tighten them until they no longer slip at peak load.
20
Page 21
3. Remember, too much tension shortens belt and bearing life!
4. Check the belt tension frequently during the first day of operation. Check
the belt tension periodically thereafter and make any necessary
adjustments.
5. The two most common causes of misalignment are shown in the
Figure 1 and Figure 2 to the right.
a). The engine drive shaft and the blade shaft are not parallel.
b). The pulleys are not located properly on the shafts.
6. To check alignment, all you need is a steel straight edge.
7. Line up the straight edge along the outside face of both pulleys as
shown in the drawing.
FIGURE 1
8. Misalignment will show up as a gap between the pulley face and the
straight edge.
9. Make sure that the width of the outside land (Area between the belt and
the edge of the pulley) is equal on both pulleys.
D. Depth Control
The cutting depth is controlled by a chrome turn handle. It is located next to
the push handle base, easily accessible from the rear of the saw. The handle
must first be unlocked before it can be turned. It is locked by a black knob
located on the operator’s left side of the hand wheel near the base of the
handle. This knob must be turned counter-clockwise to unlock the handle.
Once unlocked rotating the handle clockwise will lower the cutting blade.
Rotating it counter-clockwise will raise the cutting blade. When the proper
cutting depth is achieved by reading the depth gauge, relock the turn handle
to ensure a constant cutting depth throughout the cut.
The depth gauge can be found further down the shaft of the turn handle. This
gauge will already be preset for an Ø10" blade, but it still must be calibrated
by the user since blade diameters may vary. When using an Ø8" blade, the
gauge must be readjusted from an Ø10" blade to an Ø8" blade. Simply
loosen the black knob found near the collar of the gauge and slide it
accordingly to achieve the proper reading.
FIGURE 2
21
Page 22
The collar used to support the turn handle's screw should be checked after
each use to make sure it is lubricated and turning freely. If more lubricant
must be added, NLGI #2, aluminum complex type grease is recommended.
E. Dust Removal System Adjustment
The GC55 and GC2E are equipped with a fully adjustable non-scratching
Dust removal system which helps stabilize the machine by pushing debris
way from wheels and undercarriage of the machine. Depending on the
surface and wear the Dust Removal System may need adjustments from time
to time. The Dust removal system consist of two Brushes located in front of
the Front Wheels and a large Squeegee Assembly located under the machine
and in front of the rear wheels. When this system is properly adjusted the
front wheel Brushes, and the Rear Wheel Squeegee System will barely touch
the work surface.
Before making any adjustments turn off the machine
and disconnect the spark plug.
To adjust the Rear Wheel Squeegee Assembly:
1. Loose the Squeegee Assembly mounting
2. Position the Squeegee Assembly to the
3. Tighten the Squeegee Assembly mounting
To adjust the Front Wheel Brush:
1. Loose the Front Wheel Brush mounting
2. Position the Front Wheel Brush to the
3. Tighten the Front Wheel Brush mounting
NOTE: The Left and Right Side Front Wheel
Brushes Are Different Parts
hardware items 1 & 3
required position
hardware items 1 & 3
hardware
required position
hardware
22
Page 23
IV. PARTS LIST SECTION
A. Ordering Information
1. List model number and serial number of machine.
2. List part number and serial number of part not the item number.
3. Wherever alternate parts are shown due to product improvement, inspect
the part you have and provide additional description as necessary.
4. Specify mode of shipping desired, such as, parcel post, truck, U.P.S., best
way, etc.
For the nearest Clipper distributor call 1-800-554-8003
Common Replacement Parts
Description Part Number
WRENCH UNIVERSAL 233041
LOOSE COLLAR GC55/GC25E 241081
TIGHT COLLAR GC55/GC25E 241082
NUT 5/8-11 UNC HEX LEFT HAND THREAD 241083
GUARD BLADE GC55/GC25E 241001
BLADE SHAFT GC55/GC25E 241016
BEARING RADIAL 6204-RS 212142
HAND WHEEL GC55/GC25E 241023
BELLOWS GC55/GC25E 241026
KNOB W/THREADED STUD M6 X 15 1.0 241029
KNOB W/THREADED HOLE M6 X 15 1.0 241032
CUTTING HEAD FLANGE GC55 241037
BRUSH WHEEL OPERATOR'S RIGHT GC55/GC25E 241048
BRUSH WHEEL OPERATOR'S LEFT GC55/GC25E 241049
POINTER WELDMENT GC55/GC25E 241085
SWITCH EMERGENCY STOP GC55 241059
KNOB W/THREADED HOLE M10 X 1.5 X 50mm DIA 241061
WHEEL 75X28X8mm 241086
WHEEL W/BEARING GC55/GC25E 241044
OIL DRAIN HOSE ASSY 5.5HP HONDA GC55 241035
NOTE: All Parts Are Sold As Individual (each) Unless Noted Otherwise
Blades Use Only Norton Diamond Blades. Contact your local Norton
Clipper Distributor or Norton Clipper at 1-800-554-8003 for the best blade for the
application.
23
Page 24
58
1
4
27
3
6
Blade Guard Assembly GC55 and GC25E
Item Description QTY Part No.
1 GUARD BLADE GC55/GC25E 1 241001
2 BLADE SHAFT VENT COVER 1 241002
3 WASHER M6 DIN125 FLAT 4 27539
4 SCR M6 X 16 1.0 DIN933 1 235048
5 SCR M6 X 12 1.0 DIN933 1 300566
6 NUT M6 DIN985 LOCK 1 235136
7 SCR THUMB M6 X 12 1.0 1 241003
8 SPLASH GUARD GC55/GC25E 1 241004
24
Page 25
15
12
19
21
520 1613 10
8
7
1
14
3
17918
4
2
6
11
Cutting Head Assembly GC55 and GC25E
Item DESCRIPTION Qty Part No
1 BEARING CUTTING HEAD SUB ASSY – SEE PG
23 FOR PARTS
2 PULLEY IDLER TENSION ADJUSTER 1 241006
3 SPACER INDLER GC55/GC25E 1 241007
4 PULLEY IDLER ASSEMBLY GC55/GC25E 1 241008
5 ZERK FITTING M6 1 241009
6 SCR M12 X 80 1.75 DIN933 1 241010
7 SCR M8 X 25 1.25 DIN933 FULL THD 2 300323
8 SCR M6 X 55 1.0 DIN933 1 241011
9 SCR M6 X 30 1.0 DIN933 1 241012
10 SCR M6 X 16 1.0 DIN933 3 235048
11 WASHER M12 DIN125 FLAT 2 27505
12 WASHER M8 DIN125 FLAT 2 232110
13 WASHER M6 DIN125 FLAT 3 27539
14 NUT LOCK M12 1.75 DIN985 1 27017
15 WASHER LOCK M8 DIN127 2 300245
16 WASHER LOCK M6 DIN127B 3 300279
17 NUT M12 1.75 DIN934 HEX 1 27007
18 NUT M6 1.0 DIN934 HEX 2 300833
19 SCR M6 X 16 1.0 DIN912 SHCS 1 232113
20 BRACKET DEPTH CONTROL MOUNT GC55 1 241013
BRACKET DEPTH CONTROL MOUNT GC25E 1 241100
21 BUSHING BLADE GUARD GC55/GC25E 1 241014
1 241005
25
Page 26
5
3
2
4
1
Blade Shaft Assembly GC55 and GC25E
Item DESCRIPTION Qty Part No
1 CUTTING HEAD ASSEMBLY GC55/GC25E 1 241015
2 BLADE SHAFT GC55/GC25E 1 241016
3 BEARING COVER BLADE SHAFT GC55/GC25E 1 241017
4 BEARING RADIAL 6204-RS 2 212142
5 RETAINING RING E-STYLE 19mm X 1.8mm
DIN6799
1 241018
26
Page 27
10945711
16
15
14
6
13
2
1
17
3
8
18
12
Depth Control Assembly GC55 and GC25E
Item DESCRIPTION Qty Part No
1 DEPTH TUBE GC55/GC25E 1 241090
2 FIT GREASE ZERK M6 X 1.0 1 241019
3 SCR DEPTH CONTROL GC55/GC25E 1 241020
4 DEPTH CONTROL MOUNT GC55/GC25E 1 241021
5 SPACER HAND WHEEL GC55/GC25E 1 241022
6 HAND WHEEL GC55/GC25E 1 241023
7 KEY 3/16X3/4 1 9201074
8 CLAMP HOSE 13/16" TO 1-3/4" X 1/2"W WORM
TYPE
9 DEPTH GAUGE POINTER GC55/GC25E 1 241025
10 BELLOWS GC55/GC25E 1 241026
11 SCR M5 X 10 0.8 DIN916 SET CUP POINT 1 241027
12 RETAINING RING C-STYLE 10mm X 1.0mm
DIN471
13 KNOB W/THREADED STUD M6 X 15 1.0 1 241029
14 WASHER M4 X 19mm X 2mm 1 241089
15 WASHER LOCK M4 DIN127 1 241030
16 SCR M4 X 16 0.7 DIN933 1 235057
17 DEPTH CONTROL POINTER BAR GC55/GC25E 1 241031
18 KNOB W/THREADED HOLE M6 X 15 1.0 1 241032
2 241024
1 241028
27
Page 28
1
4
3
2
65
Engine Assembly GC55 Only
Item DESCRIPTION Qty Part No
1 ENG 5.5HP HONDA 1 216264
2 SCR M5 X 12 0.8 FLAT HEAD SOCKET CAP 2 241033
3 SCR 5/16"-24 UNF X 3/4" C'SINK SOCKET HEAD 4 241034
4 OIL DRAIN HOSE ASSY 5.5HP HONDA 1 241035
5 BRACKET SELF LEVELING MOUNT GC55 1 241036
6 CUTTING HEAD FLANGE GC55 1 241037
28
Page 29
Motor Assembly GC25E
Item DESCRIPTION Qty Part No
1
2 COVER FAN GC25E 1 241113
3 GASKET RUN CAPACITOR COVER GC25E 1 241114
4 COVER RUN CAPACITOR GC25E 1 241115
5 GASKET START CAPACITOR COVER GC25E 1 241116
6 COVER START CAPACITOR GC25E 1 241117
7 BOX VOLTAGE CHANGE SWITCH GC25E 1 241118
8 TOGGLE SWITCH GC25E 1 241119
9 CABLE GLAND PG-11 2 241120
10 GUARD SWITCH GC25E 1 241121
11 CAPACITOR RUN GC25E 1 241122
12 CAPACITOR START GC25E 1 241123
13 SCR 10-24 X 3/8 PHILLIPS ROUND HEAD 2 241124
14 SCR M5 X 40 0.8 DIN7985 PH PHILLIPS 3 241125
15 SCR M5 X 40 0.8 DIN7985 PH PHILLIPS 1 241126
16 NUT M5 0.8 LOCK DIN985 1 241127
17 FAN GC25E 1 241128
18 WASHER M4 DIN125 FLAT 2 235104
19 NUT M4 0.7 DIN934 1 241129
20 SCR 10-24 X 3/8 PHILLIPS ROUND HEAD 3 241124
21 SCR M6 X 16 1.0 DIN7985 PH PHILLIPS 4 241125
22 SCR 10-24 X 1/4 PHILLIPS ROUND HEAD 4 241126
MOT 2.5HP 115-230v/60/1 GC25E
COMPLETE MOTOR (ITEMS 2 to 21)
1
241112
29
Page 30
12
15
8
7
17
13
5
1116
3
1814
10611 12
2
4
1
9
Frame Assembly GC55 Only
Item DESCRIPTION Qty Part No
1 FRAME GC55 1 241038
2 REAR POINTER GC55/GC25E 1 241039
3 SCR M8 X 65 1.25 DIN931 HEX HEAD CAP 1 241040
4 WASHER M8 DIN125 FLAT 6 232110
5 WASHER M4 DIN125 FLAT 16 235104
6 NUT M8 1.25 LOCK DIN985 3 241041
7 NUT M4 0.7 LOCK DIN985 8 241042
8 GROMMENT GC55 1 241043
9 WHEEL W/BEARING GC55/GC25E 4 241044
10 WASHER M8 X 24MM OD DIN9021B 4 241045
11 WASHER LOCK M8 DIN127 8 300245
12 SCR M8 X 20 1.25 DIN933 HEX HEAD CAP 6 235013
13 SCR M4 X 12 0.7 DIN933 HEX HEAD CAP 8 235103
14 SCR M8 X 65 1.25 DIN931 HEX HEAD CAP 1 241040
15 FRONT AXLE GC55/GC25E 1 241046
16 SCR M8 X 35 1.25 SOCKET HEAD CAP DIN912 2 241047
17 BRUSH WHEEL OPERATOR'S RIGHT
1 241048
GC55/GC25E
18 BRUSH WHEEL OPERATOR'S LEFT
1 241049
GC55/GC25E
19 SQUEEGEE ASSEMBLY ONLY GC55/GC25E 1 241050
30
Page 31
Frame Assembly GC25E Only
Item DESCRIPTION Qty Part No
1 FRAME GC25E 1 241101
2 SCR M8 X 65 1.25 DIN931 HEX HEAD CAP 1 241040
3 REAR POINTER GC55 1 241039
4 WASHER M8 DIN125 FLAT 7 232110
5 WASHER M4 DIN125 FLAT 17 235104
6 NUT M8 1.25 LOCK DIN985 4 241041
7 NUT M4 0.7 LOCK DIN985 8 241042
8 GROMMET GC55 1 241058
9 WHEEL W/BEARING GC55 4 241044
10 WASHER M8 X 24MM OD DIN9021B 4 241045
11 WASHER LOCK M8 DIN127 8 300245
12 SCR M8 X 20 1.25 DIN933 HEX HEAD CAP 6 235013
13 SCR M4 X 12 0.7 DIN933 HEX HEAD CAP 8 235103
14 SCR M8 X 65 1.25 DIN931 HEX HEAD CAP 1 241040
15 SCR M8 X 35 1.25 SOCKET HEAD CAP DIN912 2 241047
16 BRUSH WHEEL OPERATOR'S RIGHT GC55 1 241048
17 SQUEEGEE ASSEMBLY ONLY GC55 1 241050
18 POWER CABLE SUPENSION ARM GC25E 1 241102
19 SCR M4 X 8 0.7 DIN966 PHILIPS 1 235099
20 CHAIN FOR QUICKRELEASE PIN 9" LONG GC55 1 241056
21 WASHER LOCK M4 DIN127 1 241030
22 PIN QUICKRELEASE 5/16" X 2" GRIP LENGTH 1 241092
23 FRONT AXLE GC55 1 241046
24 BRUSH WHEEL OPERATOR'S LEFT GC55 1 241049
31
Page 32
5
4
2
3
1
Front Pointer Assembly GC55 and GC25E
Item DESCRIPTION Qty Part No
1 POINTER WELDMENT GC55/GC25E 1 241085
2 WHEEL 75X28X8mm 1 241086
3 FRONT POINTER ROD GC55/GC25E 1 241087
4 WASHER M8 DIN125 FLAT 2 232110
5 NUT M8 1.25 LOCK DIN985 2 241041
32
Page 33
29
21
5
31
30
45
50
49
48
44
43
3
17 20
19
56
12
11
24
53
18
628
35
52
29 28
16
13
10
15
51
33
55
46
47
27
25
1
7
37
41
57
32
9
34 3938
40
22 4226
4
36
54
Main Assembly GC55 Only
33
Page 34
Main Assembly GC55 Only
Item DESCRIPTION Qty Part No
1 SEE FRAME ASSY GC55 PAGE 30 1 -NA2 HANDLE BAR GC55 1 241052
3 ENGINE ASSEMBLY GC55 SEE PAGE 28 1 -NA4 WASHER M6 DIN125 FLAT 8 27539
5 WASHER M8 DIN125 FLAT 6 232110
6 SCR M6 X 55 1.0 DIN933 HEX HEAD CAP 1 241011
7 SCR M8 X 60 1.25 DIN933 HHC FULL THD 1 360146
8 NUT M6 DIN985 LOCK 1 235136
9 NUT M8 1.25 LOCK DIN985 2 241041
10 SCR 5/16-18 UNC X 2-1/2" CARRIAGE BOLT 1 241054
11 WASHER 3/8 WAVE 1 241055
12 KNOB M8 X 1.25 ADJUSTABLE 1 241091
13 PIN QUICKRELEASE 5/16" X 2" GRIP LENGTH 1 241092
14 CHAIN FOR QUICKRELEASE PIN 9" LONG 1 241056
15 SCR NO18-18 X 3/4" SELF DRILLING ROUND HD 1 241057
16 GROMMENT GC55 1 241058
17 SWITCH EMERGENCY STOP GC55 1 241059
18 SWITCH PANEL GC55 1 241060
19 SCR M4 X 8 0.7 DIN966 PHILIPS 6 235099
20 WASHER LOCK M4 DIN127 6 241030
21 WASHER LOCK M8 DIN127 4 300245
22 WASHER LOCK M6 DIN127B 7 300279
23 DIAMOND BLADE CONTACT CUSTOMER
SERVICE
24 KNOB W/THREADED HOLE M10 X 1.5 X 50mm
DIA
25 SCR M8 X 40 1.25 DIN933 5 235009
26 SCR M6 X 14 1.0 DIN933 6 241062
27 SCR M8 X 30 1.25 DIN933 1 241063
28 SCR M8 X 25 1.25 DIN933 HHC FULL THD 1 300323
29 NUT M8 1.25 DIN934 HEX 5 300273
30 PIN CLEVIS 9.5MM D X 11L - 6.9MM USABLE LG 1 241064
31 HAIR PIN COTTER 1/4 TO 1/2 DIA X 0.062 X 1-
5/16L
32 SEE CUTTING HEAD ASSEMBLY PAGE 25 1 -NA33 COLLAR LOCK GC55 1 241067
34 SCR M6 X 30 1.0 DIN912 SOCKET HEAD HEX 1 241068
35 SCR M6 X 20 1.0 DIN912 SOCKET HEAD HEX 1 241069
36 PULLEY 70MM D X 3/4B 6G J SECTION 1 241070
37 KEY 3/16X3/4 1 9201074
1 Contact Customer
Service
1 241061
1 241065
34
Page 35
Main Assembly GC55 Only
Item DESCRIPTION Qty Part No
38 SCR M5 X 10 0.8 DIN916 CUP POINT SET 4 241027
39 PULLEY 56.5MM D X 3/4B 6G J SECTION 1 241071
40 BELT 350J6 - J SECTION 6 GROOVE 1 241072
41 SEE FRONT POINT ASSEMBLY GC55/GC2E
PAGE 32
42 BELT GUARD GC55 1 241074
43 SEE BLADE GUARD ASSEMBLY GC55/GC25E
PAGE 24
44 RETAINING RING C-STYLE 60mm X 2.0mm
DIN471
45 ARM STAY LEVEL GC55/GC25E 1 241078
46 SPACER M14 1 241079
47 CAM STAY LEVEL GC55/GC25E 1 241080
48 LOOSE COLLAR GC55/GC25E 1 241081
49 TIGHT COLLAR GC55/GC25E 1 241082
50 NUT 5/8-11 UNC HEX LEFT HAND THREAD 1 241083
51 SEE DEPTH CONTROL ASSEMBLY
GC55/GC25E PAGE 27
52 WASHER M6 DIN 125 FLAT 1 27539
53 WRENCH UNIVERSAL 1 233041
54 KEY 3/16X1 ¼ 1 9201080
55 SPACER SHAFT GC55/GC25E 1 241088
56 WASHER M8 DIN125 FLAT 1 232110
57 WASHER M8 DIN125 FLAT 1 232110
1 -NA-
1 -NA1 241076
1 -NA-
35
Page 36
Item DESCRIPTION Qty Part No
1 SEE FRAME ASSEMBLY GC25E PAGE 31 1 -NA2 HANDLE BAR GC55 1 241052
3 SEE MOTOR ASSEMBLY GC25E PAGE 29 1 -NA4 WASHER M6 DIN125 FLAT 8 27539
5 WASHER M8 DIN125 FLAT 12 232110
6 SCR M10 X 60 1.5 DIN931 1 27030B
7 SCR M8 X 60 1.25 DIN933 HHC FULL THD 1 360146
8 NUT M6 DIN985 LOCK 1 235136
Main Assembly GC25E Only
36
Page 37
Item DESCRIPTION Qty Part No
9 NUT M8 1.25 LOCK DIN985 2 241041
10 SCR 5/16-18 UNC X 2-1/2" CARRIAGE BOLT 1 241054
11 WASHER 3/8 WAVE 1 241055
12 KNOB M8 X 1.25 ADJUSTABLE 1 241091
13 PIN QUICKRELEASE 5/16" X 2" GRIP LENGTH 1 241092
CHAIN FOR QUICKRELEASE PIN 9" LONG
14
15
16 GROMMET GC55 1 241058
17 SHIELD POWER SWITCH GC25E 1 241104
18 PANEL POWER SWITCH GC25E 1 241105
19 SCR M4 X 8 0.7 DIN966 PHILIPS 6 235099
20 WASHER LOCK M4 DIN127 6 241030
21 WASHER LOCK M8 DIN127 4 300245
22 WASHER LOCK M6 DIN127B 7 300279
23
24
25 SCR M8 X 35 1.25 SHCS DIN7991 4 241106
26 SCR M6 X 14 1.0 DIN933 6 241062
27 SCR M8 X 30 1.25 DIN933 2 241063
28 SWITCH TOGGLE (POWER) 20A 1 235165
30
31
32
33 COLLAR LOCK GC55 1 241067
34 SCR M6 X 30 1.0 DIN912 SOCKET HEAD HEX 1 241068
35 SCR M6 X 20 1.0 DIN912 SOCKET HEAD HEX 1 241069
36
38 SCR M5 X 10 0.8 DIN916 SET CUP POINT 4 241027
39 PULLEY 56.5MM D X 3/4B 6G J SECTION 1 241071
40 BELT 350J6 - J SECTION 6 GROOVE 1 241072
41 SEE FRONT POINT ASSEMBLY PAGE 27 1 241073
42 BELT GUARD GC55 1 241074
43 BLADE GUARD ASSEMBLY GC55 1 241075
44
45 ARM STAY LEVEL GC55 1 241078
GC55 1 241056
SCR NO18-18 X 3/4" SELF DRILLING ROUND
HEAD 1 241057
DIAMOND BLADE CONTACT CUSTOMER
SERVICE -NAKNOB W/THREADED HOLE M10 X 1.5 X 50mm
DIA 2 241061
PIN CLEVIS 9.5MM D X 11L - 6.9MM USABLE
LENGTH 1 241064
HAIR PIN COTTER 1/4 TO 1/2 DIA x 0.062 x 15/16L 1 241065
SEE CUTTING HEAD ASSEMBLY GC25E PAGE
25 1 -NA-
PULLEY 70MM D X 3/4B 6G J SECTION
RETAINING RING C-STYLE 60mm X 2.0mm
DIN471 1 241076
1
241107
37
Page 38
Item DESCRIPTION Qty Part No
46 SPACER M14 1 241079
47 CAM STAY LEVEL GC55 1 241080
48 LOOSE COLLAR GC55 1 241081
49 TIGHT COLLAR GC55 1 241082
50 NUT 5/8-11 UNC HEX LEFT HAND THREAD 1 241083
51 DEPTH CONTROL ASSEMBLY GC55 1 241084
52 WASHER M6 DIN 125 FLAT 1 27539
53 WRENCH UNIVERSAL 1 233041
54 KEY 5 X 5 X 45mm 1 241108
55 CONDUIT 14.5mm D x 10mm ID FLEXIBLE 1 241109
58 CUTTING HEAD FLANGE GC25E 1 241110
59 CABLE POWER W/FM TWIST LOCK GC25E 1 241111
60 KEY 3/16X3/4 1 9201074
61 NUT M8 1.25 LOCK DIN985 8 241041
38
Page 39
NOTES
39
Page 40
Saint-Gobain Abrasives
2770 West Washington
Stephenville, TX 76401
Phone: 800-554-8003
Fax: 800-443-1092
Loading...