RGC C120 HYDRACUTTER User manual

C120 HYDRACUTTER
INSTRUCTIONS
REIMANN & GEORGER CORPORATION
CONSTRUCTION PRODUCTS BUFFALO, NY
P/N 6129006 04/10/2019

TABLE OF CONTENTS
CHAPTER TITLE PAGE
RGC CONSTRUCTION PRODUCTS PHONE: [phone]
1 SAFETY .................................................................................................................................1
1.1 Introduction .............................................................................................................................1
1.2 Safety Definitions....................................................................................................................1
1.3 Power Source and Saw Safety Labels......................................................................................1
1.4 C120 HydraCutter Safety Rules...............................................................................................1
2 SPECIFICATIONS ...............................................................................................................3
2.1 Introduction .............................................................................................................................3
2.2 Technical Data.........................................................................................................................3
2.3 Recommended Hydraulic Oil...................................................................................................4
2.4 Nameplate and Serial Number Tag..........................................................................................4
3 OPERATION.........................................................................................................................5
3.1 Chain Selection........................................................................................................................5
3.2 Before Operating the Saw........................................................................................................5
3.2.1 Checking the System Hydraulics .............................................................................................5
3.2.2 Checking Water Supply...........................................................................................................6
3.2.3 Checking Chain and Bar..........................................................................................................6
3.3 Planning the Cut ......................................................................................................................7
3.4 Breaking in a New Chain.........................................................................................................8
3.5 Cutting Procedure....................................................................................................................8
3.6 Shutting Down and Storing the Saw ........................................................................................8
4 INSPECTION AND MAINTENANCE ..............................................................................10
4.1 General Maintenance Rules....................................................................................................10
4.2 Bar Inspection and Maintenance.............................................................................................10
4.3 Drive Sprocket Inspection and Installation.............................................................................12
4.4 Chain Inspection and Maintenance.........................................................................................13
4.5 Chain Installation and Tensioning ..........................................................................................13
5 TROUBLESHOOTING.......................................................................................................14
6 FACTORS AFFECTING CHAIN LIFE ............................................................................17
6.1 How Diamond Segments Work ..............................................................................................17
6.2 Material Factors Affecting Chain Life....................................................................................17
6.3 Operational Factors Affecting Chain Life...............................................................................18
6.4 Chain End-of-Life Modes.......................................................................................................19
7 PARTS LIST.........................................................................................................................20

LIST OF FIGURES
FIGURE DESCRIPTION PAGE
RGC CONSTRUCTION PRODUCTS PHONE: [phone]
2-1 Typical C120 HydraCutter Product Nameplate ......................................................................4
3-1 Proper Chain Mounting...........................................................................................................7
4-1 Dressed Bar Rail ....................................................................................................................10
4-2 Nose Sprocket Clearance .......................................................................................................11
4-3 Sprocket Assembly.................................................................................................................12
4-4 Sprocket Wear Measurement.................................................................................................12
7-1 C120 HydraCutter Handle & Valve Assembly.......................................................................23
7-2 C120 HydraCutter Assy Right Side View (Bar Side).............................................................24
7-3 C120 HydraCutter Assy Left Side View (Motor Side)...........................................................25

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1SAFETY
1.1 INTRODUCTION
Your Reimann & Georger Corporation C120 HydraCutter 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 which 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 replacement.
1.4 C120 SAW SAFETY RULES
1. Only trained personnel shall operate the saw or do 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 chain does not stop rotating when the
power-activating trigger lever is released.
5. The guard provides protection against contact with moving parts, ejected debris, broken chain, thrown water and
concrete slurry. Never run the saw without the chain guard in place.
6. Never run saw for any extended periods with water supply turned off. Excessive wear to bar and chain will result.
7. Never allow anyone to stand in front of, or in line with, the chain forward of the guard.
8. Always use safety footwear, a snug fitting wet suit, 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.
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.

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11. Always carry the saw in its de-energized state.
12. Keep the saw handles dry, clean, and free of oil or fuel.
13. Do not start cutting without first de-energizing electrical wiring near the cutting site or imbedded in the concrete.
14. Before cutting through a wall, check both sides for possible obstructions.
15. Prior to cutting, plan your cuts to prevent pinching of the bar or personnel injury from falling concrete.
16. Always hold the saw with both hands during operation. Use a firm grip on the handles.
17. Never exceed the flow and pressure rating of the saw which is 12gpm at 2500 psi.
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. The slurry formed during 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.
22. Always shut off the hydraulic and cooling water sources when not using the equipment.

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2SPECIFICATIONS
2.1 INTRODUCTION
Your Reimann & Georger Corporation C120 HydraCutter hydraulic hand-held chainsaw is a rugged versatile tool that makes
clean, fast, precise, and straight cuts through concrete, reinforced concrete, masonry, stone, and other aggregates. As with most
hydraulic tools, the hydraulic system requirements detailed in the following sections must be met but not exceeded to support
tool performance and longevity of equipment.
2.2 TECHNICAL DATA
The following specifications apply to the C100 HydraCutter.
ENGLISH METRIC
Tool Physicals
Weight 23 lbs. (10.5 kg.)
Bar Size (10 in. bar) 17.5 in. x 2.813 in. (44.5 x 7.15 cm)
Bar Size (15 in. bar) 20.5 in. x 2.813 in. (52.1 x 7.15 cm)
Bar Size (20 in. bar) 25.25 in. x 2.813 in. (64.1 x 7.15 cm)
Bar Size (25 in. bar) 30.625 in. x 2.813 in. (77.8 x 7.15 cm)
Bar Size (30 in. bar) 35.375 in. x 2.813 in. (89.9x 7.15 cm)
Dimensions (with 10 in. bar) 45 x 10.25 x 12 in. (114.3 x 26.04 x 30.5 cm)
Dimensions (with 15 in. bar) 48 x 10.25 x 12 in. (121.9 x 26.04 x 30.5 cm)
Dimensions (with 20 in. bar) 52.5 x 10.25 x 12 in. (133.4 x 26.04 x 30.5 cm)
Dimensions (with 25 in. bar) 58 x 10.25 x 12 in. (147.3 x 26.04 x 30.5 cm)
Dimensions (with 30 in. bar) 62.5 x 10.25 x 12 in. (158.8 x 26.04 x 30.5 cm)
Depth of Cut (with 10 in. bar) 12 in. (305 mm)
Depth of Cut (with 15 in. bar) 15 in. (381 mm)
Depth of Cut (with 20 in. bar) 20 in. (508 mm)
Depth of Cut (with 25 in. bar) 25 in. (635 mm)
Depth of Cut (with 30 in. bar) 30 in. (762 mm)
Chain
Segments (for 10 in. bar) 50
Segments (for 15 in. bar) 57
Segments (for 20 in. bar) 67
Segments (for 25 in. bar) 79
Segments (for 30 in. bar) 90
Segment Dimensions 0.472 x 0.228 x 0.275 in. (12 x 5.8 x 7 mm)
Bar
Nose Sprocket 12 tooth
Hydraulic Requirements
Type of System Open-Center
Flow Rate 12 gpm (45 lpm)
Max Pressure Range 2500 psi (172 bar)
Back Pressure (Max) 250 psi (17 bar)
Hose Length (Max) 100 ft. (30 m)
Couplings 1/2” HTMA flush face
Water Requirements
Flow Rate 2.5 gpm (9.5 lpm)
Pressure (Min) 50 psi (3 bar)
Operation
Power @2500 psi 17.5 Hp (13 kw)
Torgue @2500 psi 170 in.-lbs. (19.2 Nm)

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Speed (Max) 6500 rpm
Vibration and Sound
Vibration level a= 5.65 M/S^2
Sound pressure @ 1Meter 88 dba
2.3 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.
Hydraulic oil types are too numerous to list in this manual. If you have any question concerning the type of oil suitable for C120
operation, please consult your local supplier or Reimann & Georger Corporation for details.
2.4 NAMEPLATE AND SERIAL NUMBER TAG
It is important to identify the saw completely and accurately whenever ordering spare parts or requesting assistance in service.
The saw has a product nameplate that states the model and serial numbers. The saw label should appear as the sample nameplate
shown in Figure 2-1. Record the model and serial numbers for future reference.
Figure 2-1.
Typical C120 HydraCutter Product Nameplate
MODEL ___________________________________
SERIAL NUMBER __________________________
HYDRA TOOL
MODEL
SERIAL NO.
GPM PSI

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3OPERATION
3.1 CHAIN SELECTION
Correct chain type selection is critical in maximizing chain life and cutting performance. Refer to the table below as a
guide in the chain selection. However, no direct rule determines which chain type is optimum because many material
factors also influence selection. Refer to Chapter 6 for more information on factors affecting chain life.
Model
Description
MX-3 S (H)
49 Segments
(Faster
Cutting
Speed)
For cutting very hard aggregate concrete (flint, chert, granite, etc.) with heavy steel reinforcing,
medium/hard aggregate concrete (granite, quartz, river rock, etc.) with light steel reinforcing,
or natural stone (e.g. granite).
Heavy steel reinforcing is defined as (5/8” [16 mm] diameter & larger) rebar— closer than 4” o.c.
(“on center”).
Light steel reinforcing is defined as (1/2” [13 mm] diameter & smaller) rebar— farther than 4” o.c.
It is not advisable to use this chain on soft aggregate concrete, masonry brick, concrete block, or
under highly abrasive conditions.
MX-3 L (H)
(Longer
Cutting
Life)
For cutting soft to medium aggregate such as abrasive and “green” concrete with light steel
reinforcing, concrete block, masonry brick, soft stone (limestone, sandstone, marble, etc.) or under
highly abrasive conditions.
Light steel reinforcing is defined as (1/2” [13 mm] diameter & smaller) rebar—1/2 farther than 4” o.c.
It is not advisable to use this chain on heavy steel reinforcing (5/8” [16 mm] diameter & larger), hard
natural stone (flint, chert, granite etc.) or very hard aggregate concrete.
3.2 BEFORE OPERATING THE SAW
The following systems must be checked before you can use the saw safely. Running the saw with an undetected defect in
any of these systems will quickly cause equipment damage.
1. Hydraulic system
2. Water supply and distribution
3. Chain and bar
3.2.1 Checking the System Hydraulics
1. Read and fully understand the operating manual for the hydraulic power source being used.
2. Always check the hydraulic power supply flow and pressure output. Never exceed the maximum hydraulic flow rate
of 12 gpm (45 lpm) and maximum pressure of 2500 psi (172 bar). Overspeeding the chain causes increased chain
wear, leading to loss of strength and possible chain breakage.
3. If the oil flow from the hydraulic power supply cannot be adjusted below the maximum flow rate, a flow divider must
be installed. This will ensure the saw receives the correct flow and excess oil is returned to the tank.
4. To protect the saw from excessive pressure, the pressure relief valve of the hydraulic power source must be set at
2500 psi (172 bar). If this is not possible, a separate pressure relief valve set at 2500 psi (172 bar) must be installed
in the system. If in doubt, contact your dealer.
5. The hydraulic power source must be fitted with a 10-25 micron oil filter.

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6. 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 try
to stop any detected leak with any body parts. 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.
WARNING:
LIQUID UNDER HIGH PRESSURE CAN PIERCE THE SKIN, CAUSING DEATH OR SERIOUS
INJURY. IN CASE OF INJURY, GET IMMEDIATE MEDICAL ATTENTION.
7. The saw uses flush-face quick-release couplings that are durable and easy to clean. Wipe the mating surfaces of the
couplings with clean rag prior to making connection. They are always fitted such that the male part gives oil and the
female part receives oil.
WARNING:
ENSURE HYDRAULIC HOSES ARE PROPERLY CONNECTED AND IN GOOD CONDITION.
3.2.2 Checking Water Supply
1. The water supply must be connected and tested before operating the saw. Check for proper water distribution by
triggering the saw with the hydraulic power supply off and the chain not yet installed. You should see water coming
out the three water ports each on the top and bottom of the bar and around the nose sprocket. If not, use a #10 wire to
clean the water ports, keeping in mind that the water ports are tilted forward at 30 degrees.
2. The water pressure at the saw must be between 50–160 psi (3–9.6 bar) with a flow rate of 2.5 gpm (9 lpm). For best
performance, use an RGC in-line water pump. Permanent chain, bar, and drive and nose sprocket damage will
occur if the saw is run without water, or with a water volume or pressure that is too low. This damage can
include excessive chain stretching, excessive drive and nose sprocket wear, and shorter chain life. The
recommended water pressure for most applications is between 80–100 psi.
CAUTION:
PERMANENT CHAIN, BAR, DRIVE SPROCKET, AND NOSE SPROCKET DAMAGE WILL
OCCUR IF SAW IS RUN WITHOUT WATER, OR WITH A WATER VOLUME OR PRESSURE
THAT IS TOO LOW. THIS DAMAGE CAN INCLUDE EXCESSIVE CHAIN STRETCHING,
EXCESSIVE DRIVE AND NOSE SPROCKET WEAR, AND SHORTER CHAIN LIFE.
3.2.3 Checking Chain and Bar
1. The bottom rail wears at a much faster rate than the top rail because of the downward motion during cutting. It is
recommended that the bar be turned over on a regular basis to ensure even wear.
2. Inspect the chain for cracks, missing segments or bumpers, or signs of overheating (discoloration) or other damage
before mounting and before each use.
3. Inspect the chain chassis for wear. Wearing of the chain chassis is typically referred to as “chain stretch.” If the bar
adjustment screw cannot be tightened sufficiently to prevent the drive tangs from coming completely out of the
groove, the chain chassis is considered to be excessively stretched. Discard the chain.
4. Inspect the cutting segment for wear. The segment is considered worn out when the segment height is worn to about
1/16”, or when the segment and chain chassis are the same width.

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Figure 3-1.
Proper Chain Mounting
5. The chain MUST be installed with the bumper/drive link tang arrow pointing towards bar nose on top side of bar. See
Figure 3-1. Backward (reverse) chain installation can cause excessive vibration, rough cutting, reduced chain
life, and chain breakage
6. Check for proper chain tension as described in Chapter 4.
7. Check that the drive sprocket cover mounting screws are tight.
WARNING:
DRIVE SPROCKET COVER PROVIDES PROTECTION AGAINST CONTACT WITH MOVING
PARTS, EJECTED DEBRIS, BROKEN CHAIN, THROWN WATER AND CONCRETE SLURRY.
NEVER OPERATE SAW WITHOUT COVER SECURELY IN PLACE.
8. Always operate a new chain at the rated rpm for two minutes with proper water supply before cutting to verify proper
chain mounting and tension. The chain should be moving away from you (i.e., forward direction) at the top of the
power bar. If it is not, change the position of the forward/reverse lever on the power unit, if equipped, or reverse
hydraulic connections at power unit.
CAUTION:
EXCESSIVE CHAIN OPERATING SPEED OR INSUFFICIENT WATER SUPPLY RESULTS IN
EXCESSIVE WEAR TO THE CHAIN, WHICH CAN LEAD TO LOSS OF STRENGTH AND
CHAIN BREAKAGE. OPERATE CUTTING CHAIN AT CORRECT SPEED WITH ADEQUATE
WATER.
3.3 PLANNING THE CUT
1. This saw is not insulated. Do not start cutting without first de-energizing electrical wiring imbedded in the concrete
and near the cutting site.
2. When cutting a structural member such as a wall, ensure the cut will not weaken the structure such that it will cause a
failure.
3. Plan the sequence of cuts to prevent the weight of the material being cut from pinching the bar and chain, causing it to
bind. Start with the base horizontal cut and proceed with the remaining cuts.
4. The material being cut must be rigidly supported to prevent it from falling and causing personnel injury.
5. The planned line of cut can be outlined with a permanent marker for a visual guide.