RGC FS20 User manual

FS20
HYDRASAW
INSTRUCTIONS
REIMANN & GEORGER CORPORATION
CONSTRUCTION PRODUCTS BUFFALO, NY
P/N 6122066 05/20/16

RGC CONSTRUCTION PRODUCTS PHONE: [phone]
TABLE OF CONTENTS
CHAPTER TITLE PAGE
1 SAFETY........................................................................................................................................1
1.1 Introduction....................................................................................................................................1
1.2 Safety Definitions...........................................................................................................................1
1.3 Power Source and Saw Safety Labels ............................................................................................1
1.4 FS20 Saw Safety Rules ..................................................................................................................1
2 SPECIFICATIONS......................................................................................................................3
2.1 Introduction....................................................................................................................................3
2.2 FS20 Technical Data ......................................................................................................................3
2.3 Blade Performance Requirements ..................................................................................................4
2.4 Hydraulic Power Source Requirements..........................................................................................4
2.5 Recommended Hydraulic Oil.........................................................................................................4
2.6 Nameplate and Serial Number Tag.................................................................................................5
3 OPERATION................................................................................................................................6
3.1 Component Pre-Start Checks..........................................................................................................6
3.1.1 Hydraulic System ...........................................................................................................................6
3.1.2 Flanges and Blade...........................................................................................................................6
3.2 Upright Handle and Ball Transfer Installation ...............................................................................7
3.3 Starting the System.........................................................................................................................9
3.4 Cutting Procedure..........................................................................................................................10
3.5 Shutdown and Storage...................................................................................................................10
4 INSPECTION AND MAINTENANCE.....................................................................................12
4.1 General Maintenance Rules...........................................................................................................12
4.2 Daily Inspection and Maintenance ................................................................................................12
4.3 Blade Removal and Installation.....................................................................................................12
4.3.1 Blade Removal ..............................................................................................................................12
4.3.2 Blade Installation...........................................................................................................................12
4.4 Arbor Flange Removal and Installation.........................................................................................13
4.4.1 Arbor Flange Removal..................................................................................................................13
4.4.2 Arbor Flange Installation...............................................................................................................13
5 TROUBLESHOOTING..............................................................................................................14
5.1 Locating the Problem Area............................................................................................................14
5.2 Troubleshooting the Saw...............................................................................................................14
6 PARTS LIST................................................................................................................................17
LIST OF FIGURES
FIGURE DESCRIPTION PAGE
2-1 Typical FS20 Product Nameplate...................................................................................................5
3-1 Disassembly of Hand Saw..............................................................................................................7
3-2 Assembly of Long Handle Kit........................................................................................................7
3-3 Assembly of Long Handle Kit (cont’d)..........................................................................................8
3-4 Assembly of Long Handle Kit (cont’d)..........................................................................................8
3-5 Assembly of Long Handle Kit (cont’d)..........................................................................................9
6-1 FS20 Hand Saw Complete Assembly............................................................................................21
6-2 FS20 Saw Long Handle Kit...........................................................................................................22

1
1SAFETY
1.1 INTRODUCTION
Your Reimann & Georger Corporation FS20 HydraSaw has been engineered to provide sawing performance, long term
economics and safety advantages that no other type can match. However, even a well-designed and well-built saw can
malfunction or become hazardous in the hands of an inexperienced and/or untrained user. Therefore, read this manual
and related equipment manuals thoroughly before operating your saw to provide maximum safety for all operating
personnel, and to get the maximum benefit from your equipment.
1.2 SAFETY DEFINITIONS
A safety message alerts you to potential hazards that could injure you or others or cause property damage. The safety
messages or signal words for product safety signs are DANGER, WARNING, and CAUTION. Each safety message is
preceded by a safety alert symbol and is defined as follows:
DANGER: Indicates an imminently hazardous situation which, if not avoided, will cause death or serious injury. This
safety message is limited to the most extreme situations.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It
may also be used to alert against unsafe practices that may result in property-damage-only accidents.
1.3 POWER SOURCE AND SAW SAFETY LABELS
These labels warn you of potential hazards that could cause injury. Read them carefully. If a label comes off or becomes
illegible, contact Reimann & Georger Corporation for a free replacement.
1.4 FS20 SAW SAFETY RULES
1. Only trained personnel shall operate the saw or perform repairs. A trained person is one who has read and
thoroughly understands this instruction manual and related equipment manuals and, through training and experience,
has shown knowledge regarding the safe operational procedures.
2. Sawing area must be kept clear of unauthorized personnel at all times. Place barricades or secure the area with signs
and a roped boundary to prevent personnel injury.
3. Never use the saw in an explosive atmosphere and/or near combustible material that could be ignited by a spark.
4. Do not use a saw that shows any signs of damage. Do not use the saw if the blade does not stop rotating when the
power-activating trigger lever is released.
5. The guard provides protection against contact with moving parts, ejected debris, and during wet cutting operations,
thrown water and concrete slurry. If not cutting flush to another surface, do not run the saw without the blade guard
in place.
6. Never allow anyone to stand in front of, or in line with, the blade forward of the guard.
7. Always use blades that meet applicable safety code specifications. Read and comply with blade manufacturer’s
instructions and safety precautions provided with the blade. Destroy any blade with cracks, chips, gouges, loose or
missing tips.

2
8. Always use safety footwear, safety goggles or face shields, and hearing and head protection devices. Safety shoes
MUST provide good footing to prevent slipping or falling down. Gloves protect the hands from chips and should be
worn. During dry cutting operations, provide also adequate ventilation or approved NIOSH or MSHA respirators in
closed areas to avoid breathing dust. During wet cutting operations, use also a snug fitting wet suit. If using the saw
auxiliary handle in a two-person operation, both persons must wear all the safety equipment described above.
9. Do not use the saw when you are tired or fatigued.
10. Never operate the saw under the influence of drugs, alcohol, or medication.
11. Always carry the saw in its de-energized state.
12. Keep the saw handles dry, clean, and free of oil or fuel.
13. This saw is not insulated. Do not start cutting without first de-energizing electrical wiring near the cutting site or
imbedded in any concrete.
14. Prior to cutting, plan your cuts to prevent pinching of the blade or personnel injury from falling material.
15. Always hold the saw with all available handles during operation. Use a firm grip on the handles.
16. Never exceed the maximum flow and pressure rating of the saw which is 10 gpm at 2500 psi.
17. Do not exceed either the maximum operating speed of 2400 rpm for the FS20 saws or the blade manufacturer’s rated
speed.
18. Do NOT attempt to adjust the saw during operation.
19. Keep clothing and all parts of the body away from moving parts of this saw when connected to a power source or
being used.
20. Any slurry formed during wet cutting operations is very slick. Remove while still wet to prevent yourself or others
from slipping while cutting. Slurry that has been allowed to dry is very difficult to remove.
21. Always shut off the hydraulic power and cooling water sources before disconnecting the hoses or servicing the saw.
Never remove fittings or components when hydraulic fluid is hot.
22. Always shut off the hydraulic and cooling water sources when not using the equipment.

3
2SPECIFICATIONS
2.1 INTRODUCTION
Your Reimann & Georger Corporation FS20 hydraulic direct drive HydraSaw is a rugged versatile saw that cuts cleanly,
fast, precisely, and straight through concrete, steel, stone, composition material, or hard fiber when equipped with the
appropriate diamond blade. The flush design of the saw allows cuts to be made right up against a wall or an obstruction.
The saw is equipped with a guard face, water hose connection for wet cutting and 12-inch long hose whips. As with most
hydraulic tools, the hydraulic system requirements detailed in the following sections must be met to support tool
performance and longevity of equipment.
The following features are provided:
12-inch hose whips
1” arbor & (6)5/16” bolts on 3.5” bolt circle blade mounting
Trigger actuated water supply
2.2 FS20 TECHNICAL DATA
ENGLISH METRIC
Hand Held Tool Physicals
Weight 45 lbs. (20.25 kg.)
Length (w/o blade) 25 in. (635 mm)
Width 6 in. (1153 mm)
Height (w/o blade) 13in. (330 mm)
Height (w/ blade) 22 in. (559 mm)
Maximum Blade Diameter 20 in. (508 mm)
Arbor Diameter 1 in. (25 mm)
Broom Handle Flush Cut Tool Physicals
Weight 67.5 lbs. (30.38 kg.)
Length (w/o blade) 28 in. (712 mm)
Length (w/ Blade) 36 in. (915 mm)
Width 31 in. (77 mm)
Height 37 in. (940 mm)
Maximum Blade Diameter 20 in. (508 mm)
Arbor Diameter 1 in. (25 mm)
Hydraulic Requirements
Type of System Open-Center
Flow Rate 5-8 gpm (19-30 lpm)
Maximum Pressure Range 2000-2500 psi (138-172 bar)
Maximum Pressure Relief Setting 2500 psi (172 bar)
Filtration 10 microns (nominal)
Back Pressure (Max) 78 psi (5.5 bar)
Hose Length (Max) 100 ft. (30 m)
Couplings 1/2” HTMA flush face

Water Requirements for Wet Cutting Use the flow and pressure recommended by the
blade manufacturer
Operation
Speed @ 5 gpm 1140 rpm
@ 6 gpm 1375 rpm
@ 7 gpm 1600 rpm
@ 8 gpm 1830 rpm
Cutting Depth 8 in. (203 mm)
2.3 BLADE PERFORMANCE REQUIREMENTS
Any blade from your supplier must meet the following design criteria. Using blades on this saw that don’t meet these
requirements can cause equipment damage and/or personal injury.
1. Use blades that meet applicable industrial safety code specifications.
2. Use blades that are approved by the blade manufacturer for the material to be cut.
3. Use approved dry cutting type blades in dry cutting operations and approved wet cutting type blades in wet cutting
operations.
4. Do not exceed the maximum operating speed of 2400 rpm for the FS20, or the blade manufacturer’s rated speed.
Blades must be speed tested to ANSI B7.1 safety code specifications.
2.4 HYDRAULIC POWER SOURCE REQUIREMENTS
The hydraulic power source must meet the following design criteria.
1. The flow must not exceed 10 gpm and the pressure relief valve must not exceed 2500 psi. Failure to comply could
cause excessive blade rpm and/or overpressurizing the system, resulting in equipment damage and/or personal
injury.
WARNING:
NEVER EXCEED 10 GPM FLOW. BLADE FAILURE MAY RESULT DUE TO EXCESSIVE
SPEED.
2. The hydraulic power source must meet the hydraulic requirements of Sections 2.2.
2.5 RECOMMENDED HYDRAULIC OIL
Viscosity 140-225 SUS @ 100°F (28-45 cSt @ 38°C)
40 min. SUS @ 210ºF (8 min. cSt @ 99ºC)
Flash Point 340ºF min. (170ºC min.)
Pour Point -30ºF min. (-34ºC min.)
Many types of compatible hydraulic oil are available through your local dealer/distributor. As an original equipment
manufacturer, RGC uses a Grade ISO VG 32 hydraulic turbine oil.
4

5
ydraulic oil types are too numerous to list in this manual. If you have any question concerning the type of oil suitable
lier or Reimann & Georger Corporation for details.
sting assistance in
rvice. The saw has a product nameplate that states the model and serial numbers. The saw label should appear as the
sample namepl te shown i ecord the model and seri
Figure 2-1.
20 Product Nameplate
SERIAL NUMBER __________________________
H
for HydraSaw operation, please consult your local supp
2.6 NAMEPLATE AND SERIAL NUMBER TAG
It is important to identify the saw completely and accurately whenever ordering spare parts or reque
se a n Figure 2-1. R al numbers for future reference.
Typical FS
MODEL ___________________________________
HYDRA TOOL
MODEL
SERIAL NO.
GPM PSI

6
3OPERATION
Follow all the safety procedures in Chapter 1 of this manual and in the manual supplied with your hydraulic power unit.
Failure to do this can cause equipment damage and/or personal injury. Make sure you are wearing all your safety
equipment including approved NIOSH or MSHA respirators during dry cutting or a wet suit during wet cutting.
3.1 COMPONENT PRE-START CHECKS
The following components must be checked before you can use the saw safely. Running the saw with an undetected
defect in any of these components will quickly cause equipment damage.
1. Hydraulic system
2. Flanges and blade
3.1.1 Hydraulic System
1. Before making any hydraulic connections, inspect all hoses for leaks and risks of rupture as follows:
a. Inspect each hose for breaks, cracks, worn spots, bulges, chemical attack, kinks or any other damage. Never
stop any detected leak with your hand or fingers. Do not put your face close to suspected leaks. Hold a piece of
cardboard close to suspected leaks and then inspect the cardboard for signs of hydraulic oil.
b. Replace a damaged hose immediately. Never repair the hose.
2. Connect the return (tank) line from the saw return port to the hydraulic power source return port. Then connect the
pressure line from the saw pressure port to the hydraulic power source pressure port. Clean fittings before making
connections to prevent contamination of hydraulic system.
3. Pressure relief valve must not exceed 2500 psi. The pressure relief valve must be located in the supply circuit
between the power supply and tool to limit excessive hydraulic pressure to the tool.
3.1.2 Flanges and Blade
1. Inspect the flush cut arbor flange for gouges, hairline cracks, and wear. Replace these flanges immediately if any of
these conditions are present as described in Chapter 4.
2. Be sure flange is clean and straight so blade will run true.
3. Always use the blade recommended by the blade manufacturer for your application. Use approved dry cutting type
blades in dry cutting operations and approved wet cutting type blades in wet cutting operations.
4. Inspect the blade for cracks, chips, gouges, or loose or missing tips. Destroy the blade if any of these conditions are
present.
5. Ensure a blade is installed to blade manufacturer’s specified direction of rotation. Saw rotation is clockwise as
viewed from the blade side of the saw.

3.2 LONG HANDLE AND BALL TRANSFER INSTALLATION
The long handle assembly and ball transfers for the FS20 saw provide ease of cutting in the horizontal plane and when
cutting flush against the ground.
1. Ensure the hydraulic and cooling water sources are shut off before proceeding.
2. Refer to figure 3-1. Disconnect the quick disconnects for the hydraulic lines (items #21 and #22). Disconnect the
water line from the quick disconnect on the motor and guard body (item #36). Remove the handsaw handle assembly
by removing (2) 1/4-20 hex head cap screws (item #10). Remove the guard face from the guard body (item #30) by
removing 3/8-16 hex nut (item #38) and (2) 5/16-18 hex head cap screws and hex nuts (items #37 and #42).
Figure 3-1
Disassembly of Hand Saw
3. Refer to figure 3-2. Attach the long handle brace (item #61) to the long handle assembly (item #54) and fasten into
place using provided hardware (items #10 and #12).
Figure 3-2
Assembly of Long Handle Kit
7

Refer to figure 3-3. Slide the two legs of the long handle (item #54) into the angled mounts on the back of the long
handle motor and guard assembly and place the hole of the long handle brace onto the threaded stud (item #38). Fasten
the legs into the mounts using two clevis pins. Fasten the long handle brace to the long handle motor and guard assembly
using a 3/8 hex nut (item #43).
Figure 3-3
Assembly of Long Handle Kit (cont’d)
4. Refer to figure 3-4. Attach the outer ball transfer mount (item #62) to the sides of the long handle motor and guard
assembly (item #30) using the provided hardware (items #37, #42 and #43) and slide side ball transfer mount
assemblies (item #60) into outer ball transfer mounts (item #62). Slide rear ball transfer mount assembly (item #61)
into rear ball transfer mount located on long handle brace (item #61). Screw the 2 hand knobs (item #53) into the
outer ball transfer mounts (item #48). Screw the remaining hand knob (item #53) into the rear ball transfer mount
located on the long handle brace (item #61). Adjust to desired height and fasten in place by tightening the hand
knobs (item #53).
8
Figure 3-4
Assembly of Long Handle Kit (cont’d)

5. Refer to figure 3-5. Connect hydraulic and water lines. Connect the water line (item #57) to the “tee” (item #36) on
the guard body (item #30). Connect male JIC coupling (item #21) on the pressure side hose (item #55), to the female
JIC coupling (item #22) on the guard body. Connect Female JIC coupling (item #22) on the tank side hose (item
#56), to the male JIC coupling (item #21) on the guard body.
Figure 3-5
Assembly of Long Handle Kit (cont’d)
3.3 STARTING THE SYSTEM
1. This saw is not insulated. Do not start cutting without first checking for live electrical wiring near the cutting site, or
imbedded in the cutting medium. If power lines are unavoidable, consult your power company before starting
operation.
2. The following precautions must be observed when lifting the saw:
a. Be sure of your footing.
b. Bend your knees and lift with your legs.
c. Keep hands off trigger to avoid accidental operation.
3. Ensure the power supply is turned off.
WARNING:
THE GUARD PROVIDES PROTECTION AGAINST CONTACT WITH MOVING PARTS,
EJECTED DEBRIS, AND DURING WET CUTTING OPERATIONS, THROWN WATER AND
CONCRETE SLURRY. NEVER RUN THE SAW WITHOUT THE BLADE GUARD IN PLACE,
UNLESS CUTTING FLUSH TO A SURFACE.
4. Always check the hydraulic flow and pressure rating of the hydraulic power unit before using to prevent equipment
damage. Do not exceed the maximum hydraulic flow rate and pressure of 10 gpm (30 lpm) and 2500 psi (172 bar).
Overspeeding the blade can cause equipment damage and possible personal injury.
9

5. Check that the pressure and return hoses are connected properly to the saw and hydraulic power source as described
in Section 3.1.1.
6. Before starting your power supply, read and fully understand the operating manual provided.
7. Use caution when handling fuel for a gasoline engine driven hydraulic power source. Move the hydraulic power
source at least 10 feet from the fueling point before starting the engine. Make sure the gas caps on the hydraulic
power source and fuel can are properly tightened.
3.4 CUTTING PROCEDURE
1. Provide rigid support and “hold down” of piece being cut—both sides of the cut, if practical.
2. If using the hand saw, grasp trigger with right hand and one of the front handles with left hand for operation.
3. If using the upright saw, grasp handle with left hand and trigger handle with right hand.
4. Position the saw in the appropriate place to make the desired cut.
5. Disengage the trigger lockout. Then depress (squeeze) the trigger to start the saw. Never exceed the maximum
operating speed of 1900 rpm for the FS20 saw, or the blade manufacturer’s rated speed.
6. Feed the rotating blade into the work surface using a straight, steady, constant pressure. Do NOT “bump,” jam or
force the blade into the work surface, or twist the blade in the cut. This can cause equipment damage.
WARNING:
ALWAYS START AND FINISH A SAW CUT WITH THE SAME WIDTH OF BLADE. IF
BLADE TYPE OR WIDTH IS CHANGED, START A NEW SAW CUT. FAILURE TO DO THIS
CAN CAUSE EQUIPMENT DAMAGE AND/OR PERSONAL INJURY.
3.5 SHUTDOWN AND STORAGE
1. To stop the saw, release the trigger.
2. AFTER the blade has stopped rotating, lay the saw on a flat surface.
3. Stop the hydraulic power source following the procedure in the respective instruction manual.
4. Shut off water supply.
CAUTION:
ALWAYS SHUT OFF THE COOLING WATER WHEN THE TOOL IS NOT IN USE. LEAVING
THE WATER RUNNING UNATTENDED CAN CAUSE EQUIPMENT OR PROPERTY
DAMAGE.
5. Clean concrete slurry and debris off saw and ball transfers. Once concrete slurry is dry, it is very hard to remove and
may hamper the operation of moving parts.
6. Disconnect the hoses from the saw.
10

WARNING:
NEVER DISCONNECT ANY HYDRAULICALLY OPERATED PART OF THE SAW OR
REMOVE HYDRAULIC COMPONENTS, LINES, OR FITTINGS WHILE THE POWER
SOURCE IS RUNNING OR WHENEVER THE HYDRAULIC FLUID IS HOT.
LIQUID UNDER HIGH PRESSURE CAN PIERCE THE SKIN, CAUSING SERIOUS INJURY OR
DEATH. HOT LIQUID CAN CAUSE SERIOUS PERSONAL BURNS. IF AN INJURY OCCURS,
GET IMMEDIATE MEDICAL ATTENTION.
7. Secure the saw and hydraulic power source to prevent unauthorized use.
8. Store the saw in a clean, dry area away from exposure to high heat and humidity, water, other liquids, or freezing
temperatures. Avoid temperatures low enough to cause condensation on the blade when moving it from storage to a
higher temperature. Always handle and store blades carefully.
9. Do not stack material on top of the saw that may cause the blade to bend or deform.
11

4INSPECTION AND MAINTENANCE
4.1 GENERAL MAINTENANCE RULES
1. Proper maintenance of the saw and related equipment requires timely adhering to all the guidelines given in this
chapter. Proper maintenance is required to maintain the system in good condition and free of defects.
2. Review and follow all the safety rules given in Chapter 1 before attempting any maintenance.
3. Before starting any maintenance always wear appropriate personal safety equipment.
4. Repairs must be made only by trained personnel. A trained person is one who has read and thoroughly understands
this instruction manual and related equipment manuals and, through training and experience, has shown knowledge
regarding the safe operational procedures.
5. Disconnect the cooling water and power supplies before starting.
WARNING:
FAILURE TO DISCONNECT THE POWER SUPPLY BEFORE STARTING CAN CAUSE
EQUIPMENT DAMAGE AND/OR PERSONAL INJURY.
6. Hydraulic fluid can become contaminated after extended periods of use which can cause restrictions in the system.
Check to see that the fluid is clean and change at recommended intervals to extend saw’s life. Refer to the respective
manual for maintenance information on the hydraulic power source.
4.2 DAILY INSPECTION AND MAINTENANCE
1. Inspect the blade mounted on the saw. Remove and destroy blade if any cracks, chips, gouges, or loose or missing
segments are present. Failure to do this can cause personal injury.
2. Inspect the hydraulic system hoses and fittings as described in Section 3.1.1. Failure to do this can cause personal
injury. Never try to repair a damaged hose. Replace it immediately.
3. Wipe all tool surfaces clean of dirt and foreign material.
4. Clean slurry off of saw and ball transfers after every use.
4.3 BLADE REMOVAL AND INSTALLATION
4.3.1 Blade Removal(Hand Held Flush Saw only)
1. Using a 3/16” allen wrench, loosen and remove the six 5/16” socket flat head screws.
2. Remove the blade from the arbor shaft.
4.3.2 Blade Installation
1. Inspect the flush cut arbor flange for gouges, warps, nicks, hairline cracks, wear, dirt, or sprung condition. Replace
the arbor flange immediately if any of these conditions are present as described in Section 4.4.
2. Any blade to be installed must comply with all the safety information and specifications listed in Chapter 2. Destroy
any damaged blade as described in Section 4.2.
12

CAUTION:
DO NOT FORCE A BLADE ONTO THE ARBOR FLANGE OR USE A BLADE THAT FITS THE
ARBOR TOO LOOSELY. NEVER ALTER THE SIZE OF THE ARBOR HOLE. THE BLADE
MUST FIT THE ARBOR FLANGE PROPERLY.
5. Inspect the flush cut arbor flange for gouges, warps, nicks, hairline cracks, wear, dirt, or sprung condition. Replace
the flange immediately if any of these conditions are present.
6. Install the blade onto the 1” diameter arbor.
7. Thread the six 5/16” flat head screws onto the flange. Tighten using a 3/16” allen wrench. Be sure the bolts are
tightened securely.
4.4 ARBOR FLANGE REMOVAL AND INSTALLATION
CAUTION:
DO NOT STRIKE THE ARBOR FLANGE WITH A HAMMER OR OTHER SIMILAR TOOL
WHEN PULLING IT OFF OR INSTALLING IT ON THE MOTOR SHAFT. THE ARBOR
FLANGE OR MOTOR COULD BE DAMAGED.
4.4.1 Arbor Flange Removal
1. Remove the blade from the arbor shaft as described in Section 4.3.1.
2. Loosen the 2 set screws that secure the arbor flange to the motor shaft.
3. Pull off arbor flange, using a gear puller if necessary. Never use a hammer or other object to impact the arbor flange.
4.4.2 Arbor Flange Installation
1. Ensure the arbor flange fits snugly on the motor shaft. Then remove the arbor flange from the motor shaft.
2. Apply Loctite RC609 or equivalent on the motor shaft. Follow the manufacturer’s instructions for curing. Install the
arbor flange on the motor shaft.
3. Tighten the 2 set screws in the arbor flange securely.
4. Re-install the blade on the arbor shaft as described in Section 4.3.2.
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5TROUBLESHOOTING
5.1 LOCATING THE PROBLEM AREA
If the saw does not operate, the problem is either in the saw, the hoses, or the power supply. Locate the problem area as
follows:
1. Stop the power supply.
2. Disconnect the existing saw from the hoses and power supply.
3. Connect a known working saw to the hoses and power supply. Refer to this manual for the proper hook-up
procedure.
a. If the known working saw operates, the problem is in the disconnected saw. See the troubleshooting chart in
Section 5.2.
b. If the known working saw does not operate, the problem is probably in the hose or power supply. Proceed to
Step 4.
4. Stop the power supply.
5. Disconnect the existing hoses from the known working saw and power supply.
6. Connect a different set of hoses to the known working saw and power supply.
a. If the known working saw operates with the different set of hoses, the problem is in the disconnected hoses.
b. If the known working saw does not operate, the problem is in the power supply. See the power supply operating
manual for troubleshooting.
5.2 TROUBLESHOOTING THE SAW
The following chart is intended to assist with troubleshooting the FS20 HydraSaw. While not all inclusive, the chart
outlines the most common causes of a problem and the recommended course of action.
The troubleshooting guide for the associated power supply is in the instruction manual specifically for this unit.
SYMPTOM CAUSE CORRECTIVE ACTION
Saw inoperative. Saw connected to improper
power supply hydraulic
system.
No hydraulic fluid in system
or fluid level low.
Saw parts loose.
Dirt or contaminants in saw
parts.
Saw parts worn or damaged.
See Chapter 2 for type of hydraulic system required. Verify
power supply hydraulic system.
Check fluid level. Fill to full mark. Check system for leaks.
Tighten component hardware.
Disassemble saw and clean parts.
Disassemble saw and replace worn or damaged parts.

15
Saw operates
erratically. Leak in system.
Saw parts sticking or binding.
Dirt or contaminants in saw
parts.
Tighten fittings. Inspect all hoses for leaks as described in
Section 3.1.1. REPLACE A LEAKING HOSE
IMMEDIATELY. NEVER TRY TO REPAIR IT.
Check for dirt or gummy deposits. Clean parts.
Check for worn or damaged parts and replace as required.
Be sure flanges are clean and straight so blade will run true on
sides. See Chapter 4 for proper blade mounting procedure.
Disassemble saw and clean parts.
Saw operates
slowly.
Insufficient flow.
Hydraulic fluid level low.
Hydraulic fluid viscosity too
heavy.
Saw parts loose.
Saw parts worn or damaged.
Refer to power source operator’s manual for proper
adjustment of flow.
Check fluid level. Fill to full mark. Check system for leaks.
Use fluid viscosity recommended. See Section 2.6.
Tighten component hardware.
Disassemble saw and replace worn or damaged parts.
Saw feels hot. Power source heat exchanger
malfunctioning
Hydraulic fluid level low.
Hydraulic fluid dirty.
Excessive flow.
Refer to power source operator’s manual.
Check fluid level. Fill to full mark. Check system for leaks.
Drain reservoir, flush and fill with clean fluid. Change filter.
Refer to power source operator’s manual for proper
adjustment of flow.
Saw leaks hydraulic
fluid.
Saw parts loose.
Saw parts worn or damaged.
Tighten component hardware.
Disassemble saw and replace worn or damaged parts.
Saw control valve
sticks or works hard.
Check for dirt or gummy
deposits.
Misalignment or binding of
control linkage.
Valve parts damaged.
Clean parts.
Correct alignment, lubricate linkage joints, and replace
damaged parts.
Disassemble valve and replace damaged parts.
Saw operates, but
blade does not cut. Blade installed opposite to manufacturer’s cutting
rotation.
Wrong blade used for material
being cut.
Check for correct cutting rotation of blade. If installed
incorrectly, remove and install correctly.
Install blade recommended by manufacturer for material to be
cut.

WARNING:
ANY BLADE FROM YOUR SUPPLIER MUST MEET THE DESIGN CRITERIA LISTED IN
CHAPTER 2. USING BLADES ON THIS SAW THAT DON’T MEET THESE
REQUIREMENTS CAN CAUSE EQUIPMENT DAMAGE AND/OR PERSONAL INJURY.
16

6PARTS LIST
The following parts list applies to the FS20 HydraSaw only. The parts list for the hydraulic power source is in the
separate manual supplied for this item. Each item number on the following parts list can be matched with the item number
shown on the assembly drawing.
2020404 – SHORT HANDLE UPGRADE see figure 6-1
Item Number Part Number Quantity Description
1
1697502
2
HOSE WHIPS W/O FITTINGS
2
1903120
1
WATER HOSE WHIP
3
2020528
1
FS20 SHORT HANDLE
4
2020534
1
FS20 SHORT HANDLE PRESSURE SIDE HOSE
5
2020537
1
FS20 SHORT HANDLE TANK SIDE HOSE
6
5023960
1
SAW TRIGGER LOCKOUT
7
5023970
1
SAW TRIGGER
8
5611235
1
90 DEG 1/4" TUBE ADAPTER
9
5806140
1
1/2” SS HOSE CLAMP
10
5806206
2
1/4-20 X 3/4” HEX HEAD BOLT
11
5806210
2
1/4-20 X 1-3/4” HEX HEAD BOLT
12
5806366
2
1/4-20 CZP TOPLOCK HEX NUT
13
5806392
2
1/4 USS FLAT WASHER
14
5806393
6
1/4 SAE FLAT WASHER
15
5806394
2
1/4 EXT TOOTH WASHER
16
5806429
2
3/32 COTTER PIN
17
5806757
1
1/4 X 1-1/2 CLEVIS PIN
18
5806759
1
1/4 X 1-3/4 CLEVIS PIN
19
5806792
1
TORQ SPRING
20
5920843
.25 FT
1/4" POLYETHYLENE HOSE
21
6001885
2
1/2” QD COUPLING MALE
22
6001886
2
1/2" QD COUPLING FEMALE
23
6004623
1
3-PORT VALVE W/ FITTINGS
24
6407156
1
1” PLUG
25
6407165
2
HAND GRIP
26
7407160
1
HOSE WASHER W/ FILTER
17

2020305 - FS20 HAND SAW see figure 6-1
Item Number Part Number Quantity Description
27
2020404
1
FS20 SHORT HANDLE UPGRADE
28
2020546
1
ADJUSTABLE FENCE
29
2020501
1
FACE GUARD
30
2020504
1
GUARD BODY
31
2021220
1
FLUSH ARBOR FLANGE
32
2065209
1
FS20 HYDRAULIC MOTOR
33
5604681
1
1-1/16 SAE X 3/4 JIC ADAPTER
34
5620840
1
7/8 SAE X 3/4 SAE ADAPTER
35
5620869
1
90 DEG 1/4” TUBE ADAPTER
36
5620872
1
“TEE” 1/4" TUBE ADAPTER
37
5806224
2
5/16-18 X 1 HEX HEAD BOLT
38
5806247
1
3/8-16 X 1 HEX HEAD BOLT
39
5806248
2
3/8-16 X 1-1/4 HEX HEAD BOLT
40
5806346
2
1/4-28 X 3/16 SET SCREW
41
5806368
2
3/8-16 TOPLOCK HEX NUT
42
5806375
2
5/16-18 HEX NUT
43
5806377
1
3/8-16 HEX NUT
44
5806401
2
5/16 SAE FLAT WASHER
45
5806402
2
5/16 EXT TOOTH WASHER
46
5806406
1
3/8 SAE FLAT WASHER
47
5806407
1
3/8 EXT TOOTH WASHER
48
5820846
6
5/16-8 X 5/8 FLAT HEAD SCREWS
49
5920843
1.5 FT
1/4” POLYETHYLENE HOSE
21
6001885
1
1/2” QD COUPLING MALE
22
6001886
1
1/2" QD COUPLING FEMALE
50
6020848
1
FS20 HYDRAULIC TUBE
51
6204036
1
RGC SERIAL NUMBER TAG
52
6204696
1
“PROTECT YOUR EYES” DECAL
53
5804650
2
KNOB
7420209
1
SEAL KIT, FS20 MOTOR CASAPPA
18