RGC C150 User manual

8 GPM
MINI HYDRACUTTER
INSTRUCTIONS
REIMANN & GEORGER CORPORATION
CONSTRUCTION PRODUCTS BUFFALO, NY
P/N 6122092 3/5/15

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 Mini HydraCutter Safety Rules................................................................................................1
2 SPECIFICATIONS ...............................................................................................................3
2.1 Introduction .............................................................................................................................3
2.2 Technical Data.........................................................................................................................3
2.3 Recommended Hydraulic Oil...................................................................................................3
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.........................................................................................................7
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 Nose Sprocket Replacement...................................................................................................11
4.4 Drive Sprocket Inspection and Installation.............................................................................12
4.5 Chain Inspection and Maintenance.........................................................................................13
4.6 Chain Installation and Tensioning ..........................................................................................13
5 TROUBLESHOOTING.......................................................................................................15
6 FACTORS AFFECTING CHAIN LIFE ............................................................................18
6.1 How Diamond Segments Work ..............................................................................................18
6.2 Material Factors Affecting Chain Life....................................................................................18
6.3 Operational Factors Affecting Chain Life...............................................................................19
6.4 Chain End-of-Life Modes.......................................................................................................20
7 PARTS LIST.........................................................................................................................21
RGC CONSTRUCTION PRODUCTS PHONE: [phone]

LIST OF FIGURES
FIGURE DESCRIPTION PAGE
2-1 Typical Mini HydraCutter Product Nameplate .......................................................................4
3-1 Proper Chain Mounting...........................................................................................................7
4-1 Dressed Bar Rail ....................................................................................................................11
4-2 Nose Sprocket Clearance .......................................................................................................11
4-3 Sprocket Assembly.................................................................................................................12
4-4 Sprocket Wear Measurement.................................................................................................13
7-1 Mini HydraCutter Frame & Valve Assembly.........................................................................22
7-2 Mini HydraCutter Assembly-Front View...............................................................................23
7-3 Mini HydraCutter Assembly-Back View ...............................................................................24
RGC CONSTRUCTION PRODUCTS PHONE: [phone]

1SAFETY
1.1 INTRODUCTION
Your Reimann & Georger Corporation Mini HydraCutter has been engineered to provide cutting performance, long term
economics and safety advantages that no other type can match. However, even a well-designed and well-built HydraCutter
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 HydraCutter 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 HYDRACUTTER 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 MINIHYDRACUTTER SAFETY RULES
1. Only trained personnel shall operate the HydraCutter 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. HydraCutting 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 HydraCutter in an explosive atmosphere and/or near combustible material that could be ignited by a
spark.
4. Do not use a HydraCutter that shows any signs of damage. Do not use the HydraCutter 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 HydraCutter without the chain guard in place.
6. Never allow anyone to stand in front of, or in line with, the chain forward of the guard.
7. 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.
8. Do not use the HydraCutter when you are tired or fatigued.
9. Never operate the HydraCutter under the influence of drugs, alcohol, or medication.
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10. Always carry the HydraCutter in its de-energized state.
11. Keep the HydraCutter handles dry, clean, and free of oil or fuel.
12. Do not start cutting without first de-energizing electrical wiring near the cutting site or imbedded in the concrete.
13. Before cutting through a wall, check both sides for possible obstructions.
14. Prior to cutting, plan your cuts to prevent pinching of the bar or personnel injury from falling concrete.
15. Always hold the HydraCutter with both hands during operation. Use a firm grip on the handles.
16. Never exceed the flow and pressure rating of the HydraCutter which is 8 gpm at 2500 psi.
17. Do NOT attempt to adjust the HydraCutter during operation.
18. Keep clothing and all parts of the body away from moving parts of this HydraCutter when connected to a power
source or being used.
19. 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.
20. Always shut off the hydraulic power and cooling water sources before disconnecting the hoses or servicing the
HydraCutter.
21. 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 MiniSaw hydraulic hand-held chain saw 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 MiniSaw.
ENGLISH METRIC
Tool Physicals
Weight 16 lbs. (7.3 kg.)
Bar Size (15 in. bar) 15 in. x 2.25 in. (38.1 x 5.72 cm)
Bar Size (13 in. bar) 13 in. x 2.25 in. (33.0 x 5.72 cm)
Dimensions (with 15 in. bar) 29.23 x 11.13 x 12 in. (74.2 x 28.3 x 30.5 cm)
Dimensions (with 13 in. bar) 27.23 x 11.13 x 12 in. (69.2 x 28.3 x 30.5 cm)
Depth of Cut (with 15 in. bar) 15 in. (381 mm)
Depth of Cut (with 13 in. bar) 13 in. (330 mm)
Chain
Segments (for 15 in. bar) 55
Segments (for 13 in. bar) 50
Segment Dimensions 0.39 x 0.22 x 0.16 in. (10.0 x 5.5 x 4.0 mm)
Bar
Nose Sprocket 11 tooth
Hydraulic Requirements
Type of System Open-Center
Flow Rate 8 gpm (30 lpm)
Max Pressure Range 2000–2500 psi (138–158 bar)
Back Pressure (Max) 200 psi (13.8 bar)
Hose Length (Max) 100 ft. (30 m)
Couplings ½” HTMA flush face
Water Requirements
Flow Rate 2.5 gpm (9 lpm)
Pressure (Min) 50 psi (3 bar)
Operation
Power @2000 psi 8.0 Hp (6.0 kw)
Power @2500 psi 10.0 Hp (7.5 kw)
Torque @2000 psi 118 in.-lbs. (13.3 Nm)
Torque @2500 psi 148 in.-lbs. (16.7 Nm)
Speed (Max) 5000 rpm
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.
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Hydraulic oil types are too numerous to list in this manual. If you have any question concerning the type of oil suitable for
MINISAW 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 MiniSaw completely and accurately whenever ordering spare parts or requesting assistance in
service. The MiniSaw has a product nameplate that states the model and serial numbers. The MiniSaw 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 MiniSaw 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
SL25
(50 or 55
segments)
For cutting hard/very hard aggregate concrete (flint, chert, granite, etc.) with heavy steel reinforcing.
Heavy steel reinforcing is defined as 5/8” [16 mm] or larger rebar—1/2 closer than 4” o.c. (“on
center”). The SL25 has a higher diamond concentration than the SL45 with a softer matrix.
It is not advisable to use this chain on soft or medium aggregate concrete, masonry brick, concrete
block, or under highly abrasive conditions.
SL25
(50 or 55
segments)
For cutting medium soft/medium hard aggregate concrete (granite, quartz, river rock, etc.) with
moderate steel reinforcing. Moderate steel reinforcing is defined as (1/2” [13 mm] or 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), soft
or very hard aggregate concrete, masonry brick, or concrete block.
SL45
(50 or 55
segments)
For cutting soft/medium soft aggregate such as abrasive and “green” concrete, concrete block,
masonry brick or under highly abrasive conditions
Do NOT use this chain on any type of steel reinforcing, or medium or very hard aggregate concrete.
3.2 BEFORE OPERATING THE HYDRACUTTER
The following systems must be checked before you can use the HydraCutter safely. Running the HydraCutter 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 8 gpm (30 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 HydraCutter receives the correct flow and excess oil is returned to the tank.
4. To protect the HydraCutter from excessive pressure, the pressure relief valve of the hydraulic power source must be
set at 2300 psi (158 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.
6. Before making any hydraulic connections, inspect all hoses for leaks and risks of rupture as follows:
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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.
The HydraCutter 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 HydraCutter. Check for proper water distribution
by triggering the HydraCutter 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 HydraCutter 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 HydraCutter 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.
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 link leading the diamond segment. 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 chain guard is in the mounting grooves and that the socket head screw is tight.
8. Always operate a new chain at the rated rpm for two minutes 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.
3.3 PLANNING THE CUT
1. This HydraCutter 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.
6. For long vertical or horizontal cuts, the cutting line can be first scored with a groove using the nose of the bar. The
groove will help guide the bar for a straight cut.
3.4 BREAKING IN A NEW CHAIN
1. Before using a new chain, the cutting segments must be dressed by cutting in an abrasive material such as cinder
blocks or bricks.
2. Looking at the cutting segment closely, you should be able to see the diamond particles exposed, raised slightly higher
than the surrounding surface.
3. Check the chain tension frequently during the first thirty minutes of operation of a new chain.
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