Cleco 1700 Series User manual

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Instruction Manual
823136EN
08/20/2012
1700 and 1900 Series
Horizontal Grinders

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823136EN
08/20/2012
Cleco®
General Information
For this Instruction Manual
This Instruction Manual is the Original Instruction Manual intended for all persons who will operate and maintain
these tools.
This Instruction Manual
provides important notes for the safe and efcient use of these tools.•
describes the function and operation of the 1700 and 1900 series tools.•
serves as a reference guide for technical data, service intervals and spare parts ordering.•
provides information on optional equipment.•
Identication text:
1700 represents all models of the 1700 series horizontal grinders as described in this manual
1900 represents all models of the 1900 series horizontal grinders as described in this manual
Ú indicates a required action
• indicates a list
<..> indicates a reference number from the exploded parts drawings
Arial indicates an important feature or instruction written in Arial Bold
Identication graphic:
¢indicates a directional movement
òindicates a function or force
Copyright protection:
Apex Tool Group, LLC reserves the right to modify, supplement or improve this document or the product without
prior notice. This document may not be reproduced in any way, shape or form, in full or parts thereof, or copied
to another natural or machine readable language or to a data carrier, whether electronic, mechanical, optical or
otherwise without the express permission of Apex Tool Group, LLC.

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Cleco®
Nomenclature
XX XX H X - XX
Tool Series
17 = 1700 Series
19 = 1900 Series
Free Speed (RPM)
45 = 4500
60 = 6000
80 = 8000
Tool Configuration
H = Horizontal
Throttle Type
--- = Quick Release
L = Lever (Lock Off)
S = Self Closing Thumb
X = Spade
Wheel Type
P = Plug
16 = 6" Type 1
18 = 8" Type 1

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Cleco®
Contents
1 Safety 6
1.1 Warning and notes................................................................................................. 6
1.2 Basic requirements for safe working practices ......................................................6
1.3 Operator training.................................................................................................... 7
1.4 Personal protective equipment .............................................................................. 7
1.5 Designated use...................................................................................................... 8
1.6 Codes and standards ............................................................................................ 8
1.7 Noise and vibration................................................................................................ 8
2 Scope of supply, transport and storage 9
2.1 Items supplied ....................................................................................................... 9
2.2 Transport ............................................................................................................... 9
2.3 Storage .................................................................................................................. 9
3 Product description 10
3.1 General description ............................................................................................. 10
3.2 Operation and functional elements...................................................................... 10
4 Accessories 11
5 Before initial operation 12
5.1 Ambient conditions .............................................................................................. 12
5.2 Air supply............................................................................................................. 12
5.3 Connecting the air supply to the tool ...................................................................12
5.4 Tool set up ........................................................................................................... 13
6 First operation 14
6.1 Puting into use.....................................................................................................14
7 Troubleshooting 15
8 Maintenance 16
8.1 Service schedule ................................................................................................. 16
8.2 Lubricants ............................................................................................................ 17
9 Repair instructions 18
9.1 Excessive vibration.............................................................................................. 18
9.2 General disassembly ........................................................................................... 18
9.3 Removing the motor unit from the motor housing ............................................... 18
9.4 Motor unit disassembly........................................................................................ 18
9.5 Governor disassembly......................................................................................... 18
9.6 Throttle handle disassembly................................................................................ 18
9.7 General assembly................................................................................................ 19
9.8 Motor unit assembly ............................................................................................ 19
9.9 Governor assembly ............................................................................................. 21

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Cleco®
Contents
10 Spare parts
10.1 Handle - Lock off lever......................................................................................... 22
10.2 Handle - Thumb lever .......................................................................................... 24
10.3 Handle - Spade.................................................................................................... 26
10.4 Motor and housing assembly............................................................................... 28
10.5 Governor assembly ............................................................................................. 30
10.6 Overspeed shut off disc....................................................................................... 32
10.7 Mufer (Optional Equipment)............................................................................... 32
11 Technical data 34
11.1 1700 and 1900 series Specications................................................................... 34
12 Service 35
12.1 Replacement parts .............................................................................................. 35
12.2 Tool repairs .......................................................................................................... 35
12.3 Warranty repairs .................................................................................................. 35
13 Disposal 36

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Cleco®
Safety
1 Safety
1.1 Warnings and notes
Warning notes are identied by a signal word and a pictogram.
The signal word indicates the severity and probability of the impending danger.•
The pictogram indicates the type of danger.•
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WARNING identies a potentially hazardous situation which, if not avoided, may result in serious
injury.
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CAUTION identies a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury or property and environmental damage.
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NOTE identies general information which may include application tips or useful information but no
hazardous situations.
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Important information that must be read and understood by all personnel installing, operating or
maintaining this equipment.
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1.2 Basic requirements for safe working practices
All personnel involved with the installation, operation or maintenance of these tools must read and
understand all safety instructions contained in this manual. Failure to comply with these instructions
could result in serious injury or property damage.
These safety instructions are not intended to be all inclusive. Study and comply with all applicable
National, State and Local regulations.
Abrasives:
Any abuse or misuse of the abrasive wheel or other material removal cutting devices used with this tool
is extremely dangerous.
The grinding wheels, rotary les and other material removal cutting devices used with this product are
not manufactured or supplied by Apex Tool Group, LLC. Consult and comply with the safety practices
provided by the manufacturer of those items.
Carefully determine if there is a maximum speed marked for the cutter. If there is, this speed MUST BE
GREATER than the rated speed of the tool.
Grinding Wheel Inspection: All grinding wheels should be closely inspected before installation and
use. Consult the safety procedures of the grinding wheel manufacturer.
Proper Mounting: Consult and comply with the safety instructions of the cutting wheel manufacturer.
Insure the proper spindle, anges and guards are present on the tool.

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Cleco®
Safety
Guards: Always use prescribed guards properly mounted for the cutting device being used. If the guard
has been damaged, it must be discarded and replaced. Do not modify any guard unless approved, in
writing, by Apex Tool Group, LLC.
Check: After mounting the cutting wheel and guard, the tool should be started under a steel bench or
similarly protective area. Make sure safety glasses are worn. Turn at full speed for at least one minute
to insure proper operation.
Operation: Consult the safety operating procedures of the cutting wheel manufacturer. Avoid excessive
force or sudden impact of the cutting wheel on the workpiece.
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Work Area:
ÚEnsure there is enough space in the work area.
ÚKeep the work area clean.
ÚKeep the work area well ventilated.
Personnel Safety:
ÚInspect the air supply hoses and ttings. Do not use damaged, frayed or deteriorated hoses.
ÚMake sure the air supply hose is securely attached to the tool.
ÚEnsure a secure standing position and maintain balance.
ÚMake sure the throttle is positioned relative to the head so the throttle will not become wedged
against an adjacent object in the ON position due to normal operation.
ÚKeep the tool clean and dry to provide the best possible grip.
ÚCheck the tool speed regularly with a tachometer to assure it does not exceed the rated speed.
Safety working with and around fastening tools:
ÚUse only cutting wheels with higher rated speed than the tool
ÚDo not exceed the recommended wheel diameter for the tool
ÚInspect the grinding wheel for visible damage and cracks. Replace damaged items immediately.
ÚDisconnect the air supply before installing or replacing the abrasive and guard
ÚMake sure the grinding wheel is properly mounted and secured in position.
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1.3 Operator training
All personnel must be properly trained before operating the 1700/1900 tools. These tools are to be
repaired by fully trained personnel only.
1.4 Personal protective equipment
When working
Wear eye protection to protect against ying metal splinters.•
Wear hearing protection•
Danger of injury by being caught by moving equipment.
Wear a hair net•
Wear close tting clothing•
Do not wear jewelry•

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Cleco®
Safety
1.5 Designated use
The 1700/1900 horizontal grinders are designed exclusively for material removal by using appropriate
abrasive devices.
Do not modify the 1700/1900 horizontal grinders, any guard or accessory.•
Use only with accessory parts which are approved by the manufacturer.•
Do not use as a hammer, pry-bar or any other improper usage.•
1.6 Codes and standards
It is mandatory that all national, state and local codes and standards be followed.
1.7 Noise and vibration
Noise level at free speed (without load) according to ISO 12100: 2011
Vibration values according to ISO 12100: 2011
Horizontal Grinder Noise Level Vibration
1745H ≤ 82 dB(A) 3 m/s2
1760H ≤ 83 dB(A) 3 m/s2
1945H ≤ 88 dB(A) 3 m/s2
1960H ≤ 90 dB(A) 3 m/s2
1980H ≤ 90 dB(A) 3 m/s2

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2 Scope of supply, transport and storage
2.1 Items supplied
Check shipment for transit damage and ensure that all items have been supplied:
1 1700/1900 series horizontal grinder
1 Wheel guard
1 Flange wrench
1 823136EN instruction manual
1 Declaration of Conformity
1 Lubrication sheet
1 Warranty statement
2.2 Transport
Transport and store the 1700/1900 in the original packaging. The packaging is recyclable.
2.3 Storage
For short term storage (less than 2 hours) and protection against damage:
ÚPlace the 1700/1900 in a location on the workbench to avoid accidental depression of the lever.
or
ÚSuspend the 1700 or 1900 from a suitable balancer or tool positioner.
For storage longer than 2 hours:
ÚDisconnect the air supply from the 1700/1900
Cleco®
Scope of Supply, Transport and Storage
Object Time Period Storage Temperature
1700 series without air supply No guideline -13°F to 104°F (-25°C to 40°C)
1900 series without air supply No guideline -13°F to 104°F (-25°C to 40°C)

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Cleco®
Product Description
3 Product description
3.1 General description
Horizontal pneumatic powered grinder•
1700HSL or 1900HSL: Lock off lever•
1700HS or 1900 HS: Self closing thumb lever•
1700H or 1900H: Quick release thumb lever•
1700HG or 1900HG: Spade handle with lock off lever •
3.2 Operation and functional elements
This section describes the operational and functional elements of the 1700/1900.
7
1
2
4
5
3
6
Ref. Description
1 Air Inlet
2 Throttle Lever
3 Throttle Assembly
4 Motor Assembly
5 Output Spindle
6 Abrasive
7 Wheel Guard

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Cleco®
Accessories
4 Accessories

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Cleco®
Before Initial Operation
5 Before initial operation
5.1 Ambient conditions
Ambient temperature: 41°F (5°C) to a maximum of 104°F (40°C)
Acceptable relative humidity: 25% to 90%, non-condensing
5.2 Air supply
To attain consistent results, maintain a constant working pressure using a suitable air line unit consisting
of a lter, regulator and lubricator.
ÚThe inside diameter of the air hose must be free of residue, clean if necessary.
ÚSpray a few drops of light air tool oil into the air inlet adapter.
ÚAdjust the lubricator to a minimum setting to reduce the amount of excess oil in the exhaust air.
Oil identification
5.3 Connecting the air supply to the tool
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The air hose can disconnect from the tool by itself and whip around uncontrollably.
ÚTurn off the compressed air before connecting to the tool.
ÚSecurely connect the air hose to the tool.
ÚTurn on the compressed air.
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Parameter Description
Air Hose Minimum inside diameter: 1/2" (12,7 mm)
Maximum length: 16.4' (5 m)
Working pressure range Performance rated at: 90 psi (620 kPa)
Compressed air
Air quality according to ISO 8573-1, quality class 2.4.3
The compressed air must be clean and dry.
Part No. Packaged Designation Vendor
540397 1 Quart (0.94 liter) Airlube 10W/NR-420LB DR Fuchs Lubricants Co.
533485 1 US Gallon (3.78 liter) Airlube 10W/NR-420LB DR Fuchs Lubricants Co.

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5.4 Tool set up
Grinding wheels and guards must be properly installed on the 1700/1900 before operating.
Cleco®
Before Initial Operation
6000 RPM
6” Radial Wheel Grinding
Wheel Size: 6 x 1 x 5/8
4500 / 6000 RPM
8” Radial Wheel Grinding
Wheel Size: 8 x 1 x 5/8
8000 RPM
8” Radial Wheel Grinding
Wheel Size: 8 x 1 x 1
Cone Wheel Grinding
Tighten guard mounting bolts
to 15-20 ft. lbs. torque
Tighten guard mounting bolts
to 30-35 ft. lbs. torque
Tighten guard mounting bolts
to 30-35 ft. lbs. torque
Install unrelieved driving ange with
unthreaded end toward the driving ange
and ush with the rear driving ange.
Cone and Plug wheels are intended for
internal grinding where the workpiece
provides operator protection. Wheel
guards are not required.
867836 - 2.5” Wrench
889381 - 2” Wrench
867796 - 5/32” Hex Wrench
Grinding Wheel Mounting
WrenchesCone or Plug WheelsRadial Wheels
Driving Flange
Wheel Driving Flange
(Flat not relieved)
Blotter
Relieved Flanges
Flange Diameters
Identical
Blotters
Wheel Guard
IMPORTANT: Flange diameters must equal or exceed 1/3 the diameter of the wheel.
869699 - Threaded wheel driving ange
(Do not use washers in place of proper spacer.)
867799 - 2” relieved driving ange
867818 - 3” relieved driving ange
202005 - 3” relieved driving ange
843846
Spindle Nut
843846
Spindle Nut
843846
Spindle Nut
847047
2” Relieved
Outer Flange
842724
3” Relieved
Outer Flange
842724
3” Relieved
Outer Flange
202022
6” Wheel Guard
202025
8” Wheel Guard
202025
8” Wheel Guard

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Cleco®
First Operation
6 First operation
6.1 Putting into use
Connect the tool to an airline with a maximum pressure of 90 psig (6.2 bar). Adjust the airline lubrication
to a minimum to reduce possible contamination of the environment by the exhaust air. The work area
must be well ventilated.
ÚMake sure the air supply is securely attached and the compressed is turned on.
ÚMake sure the wheel and wheel guard is securely assembled.
ÚAvoid excessive force or sudden impact of the cutting wheel on the workpiece.
ÚDo not lay the tool down while the grinding wheel is rotating.

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Cleco®
Troubleshooting
7 Troubleshooting
Malfunction Possible causes Remedy
No or low air pressure 
Make sure there is adequate air pressure at
the tool air inlet
Throttle valve malfunction 
Disassemble throttle valve; clean all parts
and replace defective parts.
Tool does not shut
off
Throttle valve malfunction 
Disassemble throttle valve; clean all parts
and replace defective parts.
Reduced air pressure Check air supply line for any obstructions
Lack of lubrication 
Check the air line lubricator to make sure it is
full of lubricant and is working properly
Motor exhaust air is obstructed Clean or replace muffler (if equipped)
Swollen rotor blades from excessive
moisture

Check the air line filter, empty reservoir if
necessary
Worn rotor blades 
Tool disassembly required (parts
replacement)
Worn bearings 
Tool disassembly required (parts
replacement)
Loose inlet adapter Tighten inlet adapter
Worn o-ring on inlet adapter Replace o-ring
Tool loses power
Air leak at inlet
adapter
Tool does not
start

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Cleco®
Maintenance
8 Maintenance
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Danger of injury from accidental start up.
Turn off the compressed air before performing any maintenance.
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8.1 Service schedule
Only qualied and trained personnel are permitted to perform maintenance on these tools.
Regular maintenance reduces operating faults, repair costs and downtime. In addition to the following
service schedule, implement a safety related maintenance program that takes the local regulations for
repair and maintenance for all operating phases of the tool into account.
Maintenance
Interval
Daily





Visual inspection of air supply hose and connections
Inspect airline filter, regulator and lubricator for proper operation
Check the tool excessive vibration or unusual noises
Visual inspection of all external components of the tool
Make certain all guards are in place and secure
Every 500
operating
hours or 6
months





Inspect the air hose for damage or wear
Check individual parts and replace if necessary
Replace O-rings and seals
Inspect the air inlet adapter for a secure fit
Check the maximum free speed
Designation

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Cleco®
Maintenance
8.2 Lubricants
For proper function and long service life, use of the correct lubricant is essential.
Lubricants recommended for this tool.
Part No. Packaged Designation Vendor
540397 1 Quart (0.94 liter) Airlube 10W/NR-420LB DR Fuchs Lubricants Co.
533485 1 US Gallon (3.78 liter) Airlube 10W/NR-420LB DR Fuchs Lubricants Co.

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Cleco®
Repair Instructions
9 Repair instructions
9.1 Excessive vibration
The primary source of vibration when using a portable grinder is an abrasive
wheel that is out of balance, out of round, untrue, or possibly a combination of
all three. The use of quality abrasive wheels that are well balanced, round and
true is highly recommended to signicantly reduce tool vibration.
Some abrasive wheels lose their balance, roundness, and trueness as they wear from use. Because of
the abusive nature of the vibration caused by out of balance, out of round, and untrue condition of some
abrasive wheels, it is felt that these wheels are more susceptible to failure.
Excessive vibration may signal eminent wheel failure. Flat spotting on the abrasive wheel, caused by
grinding the wheel to a stop after the power has been shut off, can result in changes to the balance and
shape of the wheel. Be sure the grinding wheel has stopped before setting the tool down. Set the tool
in a tool holder when not in use.
9.2 General disassembly
Disconnect the air supply from the tool and remove the wheel guard and grinding wheel.
9.3 Removing the motor unit from the motor housing
Insert a 5/16” hex wrench (clamped in a vise) into the spindle shaft and remove the driving ange.
Removing the housing bolts will allow the governor housing to be removed from the motor housing.
Remove the motor unit from the rear of the motor housing.
9.4 Motor unit disassembly
Remove the governor assembly (left hand threads) from the rear of the motor unit. Clamping on the
cylinder, hold the motor unit in a vise with the rear bearing plate facing up. Using a soft 1/4” rod and a
suitable hammer, drive the rotor shaft out of the overspeed shut-off disc and rear rotor bearing. This will
allow the various motor unit components to be removed from the rotor.
IMPORTANT NOTE: The overspeed shut-off disc is an assembly and must not be disassembled.
Do not remove the disc seal plate unless the rear bearing plated needs to be replaced.
9.5 Governor disassembly
Remove the governor pin retainer. Using a 3/32” punch, drive out the governor weight pins. After
removing the weights and two washers, the governor cone pin can be driven out using the 3/32” punch.
Note: Always use a new governor cone pin when the governor is reassembled. Removing the
governor adjusting nut will allow removal of the governor spring.
9.6 Throttle handle disassembly
To replace the throttle valve seal, remove the throttle valve cap to remove the throttle valve
components.
This tool is equipped with two air screens for protection of the motor components from foreign material.
The air screen located in the inlet bushing may be removed for cleaning and inspection by removing
the inlet bushing. If the screen is torn or damaged, the inlet bushing should be replaced. The air screen
located between the throttle handle and motor housing may be removed for cleaning and inspection by
unscrewing the two socket head cap screws. Replace this screen if there is apparent damage.

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Cleco®
Repair Instructions
9.7 General assembly
Reassemble the tool in the reverse order of disassembly. Clean all parts thoroughly and inspect for
excessive wear or damage. Make sure bearings are not damaged or pitted and roll freely.
Rotor blades that are worn or chipped can cause the motor to lock up and result in grinding wheel spin-
off. Check the rotor blades periodically and replace them, as a set, if there are apparent chips or they
measure less than 7/16” at either end.
All replacement parts should be recommended or manufactured by Apex Tool Group, LLC.
9.8 Motor unit assembly
During reassembly, the rotor must be positioned by the front rotor collar so when assembled the rotor
will have .0015” - .0025” clearance between it and the front bearing plate. Install the front rotor bearing
into the front bearing plate and measure the depth of the bearings inner race from the face of the
bearing plate. Select, or t by sanding, a rotor collar .0015” - .0025” larger than this dimension.
Slip the assembled front bearing plate onto the rear of the spindle shaft until it is retained by the step
diameter. Now install the rotor collar and using a suitable drift (.670” ID minimum) resting against the
rotor collar, drive the front bearing plate assembly until it stops against the spindle shoulder.
7/16” or less = Replace
Select (or sand) a rotor collar to
this measurement plus .0015”
Front Bearng Plate
Front Bearng Plate
Inner race of bearing
Rotor Collar
Inner race of bearing
.0015”
Clearance

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Cleco®
Repair Instructions
9.8 Motor unit assembly (continued)
Install the rotor key into the keyway in the shaft. This will allow the rotor, rotor blades (4) and cylinder
to be installed on the shaft. Refer to the following illustration for the correct installation of the rotor and
rotor blades.
Install the rear rotor collar, rear bearing plate, and rear rotor bearing (drive on the bearing’s inner race)
onto the rotor assembly.
If the front spindle bearing is replaced, the new bearing must be pressed (press on stamped end of the
bearing) into the motor housing to a depth of 9/16” plus or minus 1/64”.
The spring washer should be assembled into the housing with its large diameter against the motor
housing (cone side up). Install the motor unit into the motor housing as shown in the above illustration.
This will allow the exhaust slots in the cylinder to be properly located in relation to the housing exhaust for
minimum noise levels. Assemble the driving ange to the spindle and tighten to 50-60 ft. lbs. torque.
Assemble the O-ring onto the disc seal plate and press the seal plate (undercut side up) onto the rear
bearing plate.
Before reassembly, the overspeed shut-off disc should be closely inspected for wear or damage.
IMPORTANT: The complete overspeed shut-off disc assembly must be assembled to the spindle
shaft using a suitable at driver (7/8” O.D. minimum) resting against the assembly and driven
down until it stops against the rear bearing inner race. Refer to the following illustration.
Note: Check the rpm rating etched on the disc against the rpm rating stamped on the tool; they must
be the same.
Rear view of motor in housing
Edge of blade must
be installed as shown
Housing
Exhaust
Motor Air Inlet
Cylinder Pin
Driver
Bearing
Rotor Shaft
Overspeed Shut-Off Disc