Racine Railroad Products 910106 Operating instructions
910106 – Web Grinder
Phone: (262) 637-9681
Email: custserv@racinerailroad.com
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Table of Contents
Section 1: Overview and Safety .................................................................................................................... 4
Web Grinder Overview.................................................................................................................................. 4
Warranty Terms and Conditions ................................................................................................................... 4
Safety Information ......................................................................................................................................... 6
Safety Terms ............................................................................................................................................. 6
Machine Use and Safety Precautions ....................................................................................................... 6
Section 2: Specifications and Installation...................................................................................................... 8
Specifications ................................................................................................................................................ 8
Installation Instructions................................................................................................................................ 10
Hose Requirements .................................................................................................................................... 11
Hose Types ............................................................................................................................................. 11
Hydraulic Hose Recommendation........................................................................................................... 12
Hydraulic Fluid Recommendation ........................................................................................................... 12
Hose Connecting Procedures ................................................................................................................. 13
Disconnecting Hoses............................................................................................................................... 14
Section 3: Tool Operation ........................................................................................................................... 15
Handle Adjustment...................................................................................................................................... 15
Tool Trigger and Trigger Lock ................................................................................................................. 16
Wheel Guard and Wheel Installation .......................................................................................................... 16
Positioning on Rail ...................................................................................................................................... 18
Operation..................................................................................................................................................... 18
Section 4: Maintenance............................................................................................................................... 19
Troubleshooting .......................................................................................................................................... 21
Section 5: Parts and Service Support ......................................................................................................... 22
Technical Support & Service ................................................................................................................... 22
Web Grinder Assembly ............................................................................................................................... 23
Web Grinder Parts List ............................................................................................................................ 25
910106 – Web Grinder
Phone: (262) 637-9681
Email: custserv@racinerailroad.com
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Section 1: Overview and Safety
Web Grinder Overview
Racine Railroad Product designs and manufactures equipment primarily for the repair and new
construction of rail and railroad tie track maintenance.
Our product line focuses on rail fastening application/removal/adjustment equipment, other tie material
(OTM) reclamation, wood and concrete railway tie repair, and tie plate handling/distribution.
The Web Grinder is designed to remove excess material from the welded area on the web of the rail.
When properly used this tool will help reduce back strain and reduce operator fatigue
•The Web Grinder mounts to the rail for stability and better control of the tool. The mounting system
features a bearing roller for smooth operation.
•The adjustable handle allows the operator to set it in the most comfortable position for them to use.
•The two-position guard allows for the use of either 1" x 8" x 5/8" bore or 2" x 8" x 5/8" bore stones or
wheels.
•The motor is operated by a trigger on the handle bar which when released, stops the rotation of the
motor. The trigger features a lock system to prevent accidental activation.
Warranty Terms and Conditions
Warranty Period
Each new machine and new parts of our manufacture are warranted against defects in material and
workmanship for one year from the date of shipment from our factory.
When contacting customer service for factory parts, service or warranty support please provide the:
•Racine Railroad Products Model
•Serial Number
•Any locally assigned identification
Vendor Parts Warranty Period
Other equipment and parts used, but not manufactured by Racine Railroad Products, Inc., are covered
directly by the manufacturer's warranty for their products.
Warranty Parts and Service
We will repair or replace, without charge, F.O.B. factory, Racine, Wisconsin, USA, any part Racine
Railroad Products manufactures which is proven to be defective during the warranty period.
Material claimed defective must be returned, if requested, to the factory within 30 days from the date of
the claim for replacement. Ordinary wear and tear, abuse, misuse and neglect are not covered by this
warranty. Depending upon the circumstances, we may provide technical assistance and/or technical
service support, without charge, to assist in the correction of warranty related problems.
910106 – Web Grinder
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Non-Warranty Parts and Service
Material damaged through normal wear and tear, abuse, misuse and/or neglect are not covered by our
warranty and should be ordered directly from our Customer Service.
Note: Parts for models that are no longer in production may not be available.
Non-Warranty Parts Orders
When placing a parts order please provide the following information:
•Company Name and Billing Address
•Purchase Order Number and Issuing Authority
•Shipping Address
•Special Handling Instructions
•Contact Phone Number
•Machine Model and Serial Number
•Part Numbers and Quantities Being Ordered
Note: Please use Racine Railroad Products part numbers when ordering parts. Racine Railroad
Products part numbers are shown in the parts lists and drawings of this manual and have only
six (6) numbers.
Any part number with other than six numbers (e.g. contains alpha-numeric characters) is a Vendor Part
Number and not a Racine Railroad Products part number
910106 – Web Grinder
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Safety Information
For safe installation and operation of this equipment, carefully read and understand the contents of this
manual. Improper operation, handling, or maintenance can result in equipment damage and personal
injury.
Only trained and authorized personnel should be allowed to operate this machine. In addition, all
personnel at the worksite (gang) should be aware of the safety concerns and their individual
responsibilities prior to working this machine.
Please read and comply with all the safety precautions in this manual before operating this machine.
Your safety is at risk.
Safety Terms
DANGER indicates a hazardous operating procedure, practice, or
condition. If the hazardous situation is not avoided death or
serious injury will occur.
WARNING indicates a hazardous operating procedure, practice, or
condition. If the hazardous situation is not avoided death or
serious injury could occur.
CAUTION indicates a potentially hazardous operating procedure,
practice, or condition. If the hazardous situation is not moderate or
minor injury could occur.
Note: Indicates an essential operating procedure, practice, or condition.
No personal injury is possible.
Machine Use and Safety Precautions
Failure to follow safety precautions when operating this equipment can
result in serious injury or death to the operator or other persons in the
area.
Observe the following precautions whenever you are operating, working
on or near this equipment.
Do not use this machine for other than its intended purpose.
Do not make any modifications without authorization or written approval from Racine Railroad Products.
Replace all Racine Railroad Products and OEM parts with genuine Racine Railroad Products and OEM
parts. Using non-OEM parts may compromise the safety of the machine.
Do not wear loose clothing, jewelry, radio belts, etc., when operating, working on or near this equipment.
They can be caught in moving parts and may result in severe injury.
Do not allow others to be near the tool when starting it or while operating. Keep bystanders and animals
out of the work area.
Do not overreach. Maintain proper footing and balance at all times.
Never operate the tool when you are tired, angry, emotionally disturbed, or under the influence of alcohol,
drugs, medications, or anything that could affect your vision, alertness, coordination or judgement.
910106 – Web Grinder
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Always wear appropriate personal protective clothing when operating this equipment: e.g. Orange safety
vest, hard hat, safety glasses with side shields, hearing protection, steel-toed safety boots, leather gloves,
dust respirator, etc.
Always lift heavy objects with the knees and legs, not the arms and back.
Always keep hands, arms, feet, head, clothing, etc., out of the operating area and away from all rotating
or moving components when operating, working on or near this machine.
Always make sure that all guards, covers, belts, hoses and operating components are in good working
order and that all controls are in the appropriate position before starting the engine.
Always make sure that all safety equipment installed properly and are in good working order. Do not
operate the machine until unsafe conditions have been corrected.
Always operate in a well-ventilated area and make sure that the air filters, air filter covers, and muffler
are in good condition.
Always keep the machine clean and free of debris. Operate the machine in a safe and responsible
manner. Exercise caution when fueling, working on or near rotating or moving components, hot
components and fuel systems. Be aware of potential fire hazards and prevent sparks, exhaust, etc., from
starting fires on the machine and/or work area.
Always hold the tool with both hands, using a firm grip when activating and operating.
Always comply with all instructions provided on any decals or placards installed on the machine and with
any relevant amplifying information provided in this manual or other general operating procedures.
Always shut disconnect the power source and make sure that all controls are in a safe position and
install all appropriate locking and safety devices before doing any of the following:
•Lubricating
•Adjusting
•Installing Tooling
•Making Repairs
•Performing Service
Stone / Wheel Safety
Always remove wheel from the tool during transportation and storage.
Always use wheels that meet the minimum requirements of the tool.
Do not cock, wedge, or jam the wheel in a cut.
Do not use the tool if the wheel doesn't stop turning when the trigger is released.
Do not exceed the tool's maximum speed rating.
Do not reverse the tool rotation.
Inspect the wheel before operating the tool. Do not use damaged wheels.
Make sure the grinding wheel has stopped turning before removing the tool from the rail.
Never carry the tool with the wheel turning.
910106 – Web Grinder
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Section 2: Specifications and Installation
Specifications
Hydraulic System Open Center
Frame Type Tube
Length 47 in. [119.38 cm]
Width 29 in. [73.66 cm]
Height (Adjustable) 27-38 in. [68.58 – 96.52 cm]
Weight (Less Stone) 34 lbs [15.42 kg]
Circuit 10 GPM @ 2000 psi
38 LPM @ 138 bar
Hydraulic Fluid Requirements [Viscosity (Fluid Thickness)]
USA Metric
50° F 450 SSU Max 10° C 95 Centistokes
100° F 130-200 SSU 38° C 27-42 C.S.
140° F 85 SSU Min. 60° C 16.5 C.S., Min.
Pour Point ............................................ 10° F / 23° C Minimum (for cold startup)
Viscosity Index (ASTM D 2220)........... 140° F Minimum
Demulsibility (ASTM D-1401) .............. 30 Minutes Maximum
Flash Point (ASTM D-92) .................... 340° F / 171° C Minimum
Rust Inhibition (ASTM D-665 A & B) ... Pass
Oxidation (ASTM D943) ...................... 1000 Hours Minimum
Pump Wear Test (ASTM D2882)......... 60 mg Maximum
910106 – Web Grinder
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Power Unit Requirements
•The power source must provide a flow of 8 – 10 GPM / 30 – 38 LPM at 1500 – 2000 psi /
100 – 400 bar.
•A relief valve setting between 2100 – 2250 psi / 145 – 155 bar is required for the operation of this
tool.
•The hydraulic system's back pressure should be less than 250 psi / 17 bar, measured at the tool
end of the operating hoses. All system checks should be made at a minimum operating
temperature 100 °F / 38 °C (maximum fluid viscosity of 400 ssu / 82 centistoke.
•The hydraulic fluid cooling system should limit the maximum temperature to 140 °F / 60 °C at the
maximum expected ambient temperature.
•The minimum cooling capacity should be 5 hp /3.73 kW at a 40 °F / 22 °C difference between
ambient temperature and fluid temperature.
•A minimum of 25-micron filtration is required for the hydraulic system. For cold weather startup
and maximum dirt holding capacity a filter element sized for 30 GPM /14 LPM is recommended.
•Racine Railroad Products recommends the use of the Diesel Power Unit. The Diesel Power Unit
is a versatile power unit that can meet the needs for most hydraulic tools used by the rail road
industry.
This power unit is capable of powering two tools simultaneously at 5 GPM (20 LPM) or one tool a
10 GPM (40 LPM) all the flows are at 200 psi / 138 bar. The maximum pressure of the hydraulic
system is limited to 2150 psi / 148.3 bar.
The power source provides the required flow and pressure to operated HTMA type I 15 – 23 LPM
(4 – 6 GPM) and type RR 34 – 40 LPM (9 – 10.5) tools. All which are open-center tools required
an operating pressure of 2000 psi / 138 bar.
910106 – Web Grinder
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Installation Instructions
Unpacking Instructions
Upon receiving your Web Grinder promptly remove it from the shipping container. Always keep top
side of container up. Inspect unit for damage which may have incurred during shipping and report it to
carrier for claim.
Tool Preparations
Some Web Grinder are shipped with the handles removed
from the frame to conserve space.
If your web grinder is shipped in this manner, insert the
handle tube into the frame and tighten the locking lever to
secure the handle in place.
When inserting the handle, avoid kinking the hoses, they
should flow in a hanging arc from the motor to the handle.
Web grinders are shipped without grinding stones, unless
otherwise requested, so a stone will need to be installed
before operation.
Hydraulic fluids are thicker in cold weather; therefore, run the engine at low idle long enough to bring
the fluid temperature up to minimum of 10°C/50 F or until the top of the hydraulic tank feels warm,
before operating tool.
Never stick foreign objects, fingers, or other extremities into
moving mechanism. Failure to follow these instructions may lead
to severe personal injury or tool damage.
Testing
Before operating the Web Grinder it is important to inspect the grinding wheel for damage, replace as
required. Check that all guards and securely in place before operating the tool. Follow all safety
precautions when inspecting tool.
All testing must be done by a trained technician.
1. To test the web grinder, apply a thin strip of masking tape to the outer edge of the grinding stone.
2. Secure the grinder by clamping it in a vice or other suitable device with the stone positioned clear of
any objects.
3. Connect the tool to a suitable power source. See Hose Connecting Procedures section for installation
details.
4. Engage the trigger and run the grinder at maximum speed.
5. Use a strobe light tachometer to measure the RPM's.
•The wheel should be rotating between 3300 rpms and 3700 rpms.
•If the RPM's do not fall in this range, see Troubleshooting in the Maintenance section.
6. When testing is complete, disconnect the tool from the power source and remove it from the vice.
When testing the lock installer, follow all safety guidelines.
910106 – Web Grinder
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Hose Requirements
It is not often necessary or advisable to use long hoses. All hoses must have an oil resistant inner surface
and an abrasion resistant outer surface. Each hose must have male pipe ends for most application.
Longer hoses can be used when necessary but can affect the operation of the tool due to resistance in
the hose.
If small diameter or long hoses are used, or if restrictive fittings are connected to the supply and return
ports, the pressure required to push the fluid through the system and back to the tank will be higher. This
will reduce tool power.
Important: Oil should always flow from the male coupler through the female coupler.
Note: The pressure increases in uncoupled hoses left in the sun. This may make them difficult to
connect. When possible after use, connect the free ends of the operating hoses together.
Hose Types
Hydraulic hose types authorized for use with the Web Grinder are:
1. Labeled and certified nonconductive.
•This is the only hose authorized for use near electrical conductors.
2. Wire braided (conductive)
•This hose is conductive and must never be used near electrical conductors.
3. Fabric braided (not certified or labeled non-conductive)
•This hose is conductive and must never be used near electrical conductors.
The rated working pressure of the hydraulic hose must be at least 175 bar (2500 psi).
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Hydraulic Hose Recommendation
Hydraulic Hose Recommendation
Flow Per Circuit Length Each Hose Use Inside Diameter SAE Spec Hose
(Wire Braid)
SAE Spec Hose
(Fiber Braid)
GPM LPM Feet Meter Inch MM
5 to 8 19 to 30 To 50 To 15 Both 1/2 13 SAE 100R1-8 100R7-8
5 to 8 19 to 30 51 to 100 15 to 30 Both 5/8 16 SAE 100R2-10 SAE 100R8-10
5 to 8 19 to 30 100 to 300 30 to 90 Pressure
Return
5/8
3/4
16
19
SAE 100R2-10
SAE 100R1-12
SAE 100R8-10
SAE 100R7-12
9 to 12 34 to 45 To 50 To 15 Both 5/8 16 SAE 100R2-10 SAE 100R8-10
9 v 12 34 to 45 51 to 100 15 to 30 Pressure
Return
5/8
3/4
16
19
SAE 100R2-10
SAE 100R3-12
SAE 100R8-10
SAE 100R7-12
9 to 12 24 to 45 100 to 200 30 to 60 Pressure
Return
3/4
1
19
25.4
SAE 100R2-12
SAE 100R1-16
SAE 100R8-12
SAE100R7-16
The rated working pressure of the hydraulic hose must be at least 2500 psi / 173 bar.
Hydraulic Fluid Recommendation
Inspect hoses for cuts, crushing, leaks, or abrasion, which
may be a safety hazard or reduce fluid flows.
The following fluids work well over a wide temperature range
at startup, allow moisture to settle out, and resist biological
growth likely in cool operating hydraulic circuits.
Others that meet or exceeds the specifications of these
fluids may also be used.
Type Hydraulic fluid
Chevron Clarity AW 15032
Exxon Univis J 32
Mobil D.T.E. 13M
Gulf Harmony AW-HVI-150-32
Shell Tellus T 32
Texaco Rando HDZ 32
Union Unax AW-WR-32
Amsoil AWH 15032
Sunvis Low Pour H/032-product code 19300
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Hose Connecting Procedures
1. Stop the engine before connecting the tool and or hoses to the OFF power unit, and when switching
hoses or tools.
2. Turn the hydraulic on/off valve to the off position before starting the engine.
Make sure all hoses are connected for correct flow direction to and from the tool being used.
When routing hose in the work area, position them where personnel will not be at risk of tripping over
them where vehicles can run over the hoses. Do not lay hose over sharp objects.
Pressurized fluid escaping from a damaged hose can penetrate the
skin and be injected in the body causing injury or death.
Do not pull on hoses to drag the power unit or tool.
Connecting Hoses
1. Wipe quick couplers with a clean lint free cloth before connecting them.
2. Depressurize the system.
3. Allow system and hydraulic fluid to cool if too hot to handle.
4. Securely connect the return (tank “R”) hose from the power source to the tool.
5. Securely connect the supply (pressure “P”) hose from the power source to the tool.
It is recommended that you connect the return hoses first and disconnect last to minimize or avoid
trapping pressure within the tool.
When connecting the quick couplers, the flow should run from male coupler to the female coupler.
The female coupler on the tool is the inlet. Quick couplers are marked with a flow direction arrow.
Pressurized fluid escaping from a damaged hose can penetrate the
skin and be injected in the body causing injury or death.
Do not pull on hoses to drag the power unit or tool.
Note: When possible, connect the free ends of uncoupled hoses to prevent build up in the hoses. The
sun can also increase pressure in the hoses and make connecting them difficult.
1. Grip the handles firmly with both hands.
2. Pull down with thumb on the safety lock and pull the trigger to the handle to start the grinder.
3. When starting the tool, hold it off from all surfaces.
4. Start grinding with the tool running.
5. When finished, release trigger and allow stone to stop turning and make sure trigger is in the locked
position before placing the tool on any surface.
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Disconnecting Hoses
1. Stop the hydraulic power source.
2. Depressurize the system.
3. Allow system and hydraulic fluid to cool.
4. Disconnect the supply (pressure) hose to the power source (pressure port) from the tool (IN port).
5. Disconnect the return (tank) hose to the hydraulic power source (return port) from the tool (OUT port).
6. To prevent contamination, always install dust caps over the hydraulic ports of the tool when
disconnected.
If injury results from escaping hydraulic fluid, seek immediate
medical attention. Serious bodily injury may occur if proper
medical attention is not administered immediately.
Do not attempt to locate hydraulic leaks by feeling around hoses
and fittings with your hands. Pinhole leaks can penetrate the skin.
910106 – Web Grinder
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Section 3: Tool Operation
Handle Adjustment
The Web Grinder is operated from a T-handle.
On the T-handle there is a trigger that is used to engage the
grinder.
•When the trigger is drawn to the handle the trigger link
then activates the on/off valve and starts the grinder
wheel spinning.
•When the trigger is released the grinder wheel will stop
rotating.
The handle height can be adjusted to accommodate the
operator's comfort zone.
Loosen the locking lever on the frame, adjust the handle
height, and tighten the lever to lock handle in place.
Locking Lever
The handle position can also be rotated 90-degrees by
loosening the locking lever and lifting the handle out of the
frame.
1. Turn the handle 90-degrees.
2. Insert the handle back into the frame.
3. Tighten the locking lever to secure handle.
The guide roller has bearings for smooth, effortless
motion when grinding.
Guide Roller
Stone / Wheel Guard
he Web Grinder’s 2-position Guard can house either 1" or 2"
grinding stones / wheels.
A locking spindle holds shaft in position to aid in stone
removal.
2-Position Guard
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Tool Trigger and Trigger Lock
1. Check that trigger lock presses into handle tube
easily and returns to locking position when
released (Arrow A).
2. Check that trigger cannot be activated with the
trigger lock in the released position.
3. With the trigger lock pressed into the handle
tube, pull the trigger to the tube.
The trigger should return to the OFF position
when released (Arrow B).
If the trigger or trigger stop sticks or does not operate
easily, check for obstructions.
If the trigger lock does not return to the OFF or lock
position when released, check the return springs.
Wheel Guard and Wheel Installation
Do not operate a tool if the trigger or trigger lock is not working
properly. Failure to follow these instructions may lead to severe
personal injury.
Do not operate tool without the wheel guard in place. Failure to
follow these instructions may lead to severe personal injury.
Inspect the wheel guard and fasteners for damage. Repair any damage before using the tool.
Wheel inspection
Before mounting all wheels should be visually inspected by the operator for damage and cracks.
Do not use damaged or cracked wheels.
A Ring Test may be used to check for cracks in the wheel, which are not visible to the naked eye.
1. To perform a Ring Test, suspend the wheel from the hole on a small pin or finger.
2. Tap the wheel gently with a non-metallic implement such as a screwdriver handle.
3. The best spot to tap is about 45-degrees either side of the vertical center ling 1" or 2" from the
periphery.
•An undamaged wheel will give a clear tone.
•If cracked there will be a dead sound instead.
Check that the surface of the blotters and backups are free of dirt and other foreign contaminants.
Use only wheels, which meet or exceed the requirements of the tool.
Wheel Backups
Inspect the backup hole and flange before installation. The backup should be free of burrs and the
bearing surfaces flat and running true when mounted on the drive spindle.
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Reducing Bushings
If reducing bushings are used in a wheel's mounting hole, check that it does not protrude beyond the
surface of the wheel. Bushings that are too thick will not allow the backups to contact the wheel properly.
Do not use wheels that have bushings which are loose in the mounting holes. Do not use shim stock to
tighten or replace bushings.
Wheel Installation
1. Remove the stone guard.
2. Hold the spindle lock pin in while turning the spindle shaft
or stone counter-clockwise (left) until the stops the shaft.
Spindle Lock Pin
3. Holding the pin in, apply enough force to loosen the
retaining nut and remove it (Arrow A).
4. Remove the backup flange and used grinding stone
(Arrow B).
5. Check that the blotter came off with the stone and did not
stick to the inner backup.
6. Check that the inside backup stayed in place. The square
on the spindle should slide into the square in the back of
the backup.
7. Use new blotters between the stone and backups.
•The blotters should be supplied with the stones.
•They are made from highly compressible material and
should not be more than .025 inches thick.
Retaining Tut
8. Place the stone and outer backup on the spindle and
tighten the retaining nut.
9. Install the stone / wheel guard in the proper location for 1"
or 2" thick grinding stones.
10. Before starting grinder make sure the locking pin has
return to the unlock position and the stone turns easily by
hand.
Stone / Wheel Guard
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Positioning on Rail
When positioning on the rail, the Web Grinder frame should start out at a slight angle to the rail.
1. Set the roller end over the ball of the rail so the end hook drops below the ball.
2. With the hook under the rail, bring the Web Grinder towards the rail letting the roller rest on top of the
ball.
3. The roller end has now captured the ball of the rail and will not jump off. (Figure 3.6B)
Frame at a slight angle to the rail.
Web Grinder on the rail.
Operation
1. Connect the hoses. See Hose Connecting Procedures for details.
2. Position web grinder on the rail.
3. Firmly grip the handle bars of the Web Grinder and hold the stone off the ground a short distance
from the web of the rail.
4. Press the trigger lock down and pull the trigger to turn grinder ON. The trigger must be held in the on
position while grinding.
5. Move the grinder as required to grind the weld.
6. When grinding job has been completed release the trigger. The stone will stop turning.
7. Make sure the stone has stopped before removing grinder from the rail.
8. Disconnect the hoses.
910106 – Web Grinder
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Section 4: Maintenance
It is highly recommended to practice regular check-ups and maintenance in accordance with the
usage
frequency to keep your tool in better condition and reduces total
run
ning
costs.
Do not perform maintenance on the Web Grinder while the
hydraulic power source motor is running or when hoses are
connected.
All maintenance must be done with the tool disconnected form
power source.
Cleaning and Maintenance Recommendations
•
Wipe
all external surfaces after each use with a clean, lint free cloth to remove surface
contaminants from the tool.
•
Store all
tools in an enclosed area to prevent weather from contaminating their systems.
Safety Devices
When maintenance is complete, make sure the following:
•
The hydraulic
control valves are operable.
•
The hydraulic quick couplers and hoses are safe to use.
Storage Preparation
•Cover male and female hose whips.
•Store in the upright position. Secure tool to prevent it from being knocked over.
•Store the Web Grinder on a smooth level surface.
•The tool should be stored in a cool, dry environment which is not subjected to rapid temperature
changes.
•When storing tool for extend length of time it is recommended that the grinding stone be removed.
Grinding stones, which are not stored properly increase the potential for them to fail when put into use
Daily
Do not attempt to locate hydraulic leaks by feeling around hoses
and fitting with hand. Pin-Hole leaks can penetrate the skin.
•Wipe all tool surfaces, fittings, and couplings free of grease, dirt, and foreign materials.
•Inspect the tool, hydraulic system, hoses, and fittings for signs of leaks, cracks, wear, and/or damage.
Replace if necessary.
•To prevent contamination, always install dust caps over the hydraulic ports when disconnected.
•Inspect grinder stone for damage and wear, replace as required.
•Inspect stone guard fasteners. Keep fasteners tight and guard in good condition.
910106 – Web Grinder
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Page 20 of 26
Monthly
•Perform a detailed inspection of the systems hoses and fittings according to the hydraulic hose
operator’s manual and as stated in SAE standard j1273, May 1989 or latest revision.
Replace the hoses and/or fittings if necessary.
Care for Abrasive Wheels
All abrasive wheels are breakable and therefore care should be exercised in handling and storage to
prevent damage.
All abrasive wheels should be stored in a dry area and not be subjected to exposure to water or other
solvents. Also avoid freezing temperatures and humid conditions which cause condensation on the
wheels.
Thin organic bonded wheels, (rail saw blades or slotting discs used for cutting), should be laid flat on a
flat surface of steel or similar rigid material away from excessive heat, moisture, and other liquids.
If thin wheels are supplied with blotters attached, suitable separators should be used to preserve flatness.
Coupler Recommendation
3/8 inch Flat Face HTMA couplers rated at 2500 psi working pressure. Threads are to match fittings
used on hoses or fittings used as adapters.
Bolt Size Torque
#10-32 38 in-lb
1/4-20 76 in-lb
5/16-18 13 ft-lb
3/8-16 23 ft-lb
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