STANLEY CH18 HYDRAULIC CHIPPING HAMMER

SAFETY SYMBOLS

Safety symbols and signal words are used to emphasize actions that, if not strictly followed, could result in a life-threatening situation, bodily injury, or damage to equipment.

• ! This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid possible injury or death.
• DANGER This safety alert and signal word indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
• WARNING This safety alert and signal word indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
• CAUTION This safety alert and signal word indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
• CAUTION This signal word indicates a potentially hazardous situation which, if not avoided, may result in property damage.
• NOTICE This signal word indicates a situation which, if not avoided, will result in damage to the equipment.
• IMPORTANT This signal word indicates a situation which, if not avoided, may result in damage to the equipment.

Always observe safety symbols. They are included for your safety and for the protection of the tool.

LOCAL SAFETY REGULATIONS

Enter any local safety regulations here. Keep these instructions in an area accessible to the operator and maintenance personnel.

SAFETY PRECAUTIONS

Tool operators and maintenance personnel must always comply with the safety precautions given in this manual and on the stickers and tags attached to the tool and hose. These precautions are for your safety. Review them carefully before operating the tool and before performing general maintenance or repairs. Supervising personnel should develop additional precautions relating to the specific work area and local safety regulations.

The CH18 Hydraulic Chipping Hammer will provide safe and dependable service if operated in accordance with the instructions given in this manual. Read and understand this manual and any stickers and tags attached to the tool and hoses before operation. Failure to do so could result in personal injury or equipment damage.

• Operator must start in a work area without bystanders. The operator must be familiar with all prohibited work areas such as excessive slopes and dangerous terrain conditions.
• Establish a training program for all operators to ensure safe operation.
• Do not operate the tool unless thoroughly trained or under the supervision of an instructor.
• Always wear safety equipment such as goggles, ear, head protection, and safety shoes at all times when operating the tool.
• Do not inspect or clean the tool while the hydraulic power source is connected. Accidental engagement of the tool can cause serious injury.
• Supply hoses must have a minimum working pressure rating of 2500 psi/172 bar.
• Be sure all hose connections are tight.
• The hydraulic circuit control valve must be in the "OFF" position when coupling or uncoupling the tool. Wipe all couplers clean before connecting. Use only lint-free cloths. Failure to do so may result in damage to the quick couplers and cause overheating of the hydraulic system.
• Do not operate the tool at oil temperatures above 140 °F/60 °C. Operation at higher oil temperatures can cause operator discomfort and may damage the tool.
• Do not operate a damaged, improperly adjusted, or incompletely assembled tool.
• Do not weld, cut with an acetylene torch, or hardface the tool bit.
• To avoid personal injury or equipment damage, all tool repair, maintenance, and service must only be performed by authorized and properly trained personnel.
• Do not exceed the rated limits of the tool or use the tool for applications beyond its design capacity.
• Always keep critical tool markings, such as labels and warning stickers legible.
• Always replace parts with replacement parts recommended by Stanley Hydraulic Tools.
• Check fastener tightness often and before each use daily.
• Never operate the tool if you cannot be sure that underground utilities are not present.
• Do not wear loose fitting clothing when operating the tool.

TOOL STICKERS & TAGS

Stanley Hydraulic Tools
3810 SE Naef Road
Milwaukie, OR 97267

MODEL NO. CH18
7-9 GPM / 26-34 LPM
2000 PSI / 140 BAR

28852 NAME TAG

03786 GPM STICKER

CAUTION
DO NOT EXCEED 2000 PSI/140 BAR
DO NOT EXCEED SPECIFIED FLOW OR PRESSURE
USE CLOSED-CENTER TOOL ON CLOSED-CENTER SYSTEM. USE OPEN-CENTER TOOL ON OPEN-CENTER SYSTEM. CORRECTLY CONNECT HOSES TO TOOL "IN" AND "OUT" PORTS. IMPROPER HANDLING, USE, OR OTHER MAINTENANCE OF TOOL COULD RESULT IN A LEAK, BURST, OR OTHER TOOL FAILURE. CONTACT AT A LEAK OR BURST CAN CAUSE OIL INJECTION INTO THE BODY. FAILURE TO OBSERVE THESE PRECAUTIONS CAN RESULT IN SERIOUS PERSONAL INJURY.

The safety tag (p/n 15875) is attached to the tool when shipped from the factory. Read and understand the safety instructions listed on this tag before removal. We suggest you retain this tag and attach it to the tool when not in use.

HOSE TYPES

The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the hydraulic system. There are three types of hydraulic hose that meet this requirement and are authorized for use with STANLEY hydraulic tools:

• Certified non-conductive: Constructed of thermoplastic or synthetic rubber inner tube, synthetic fiber braid reinforcement, and weather-resistant thermoplastic or synthetic rubber cover. Hose labeled certified non-conductive is the only hose authorized for use near electrical conductors.
• Wire-braided (conductive): Constructed of synthetic rubber inner tube, single or double wire braid reinforcement, and weather-resistant synthetic rubber cover. This hose is conductive and must never be used near electrical conductors.
• Fabric-braided (not certified or labeled non-conductive): Constructed of thermoplastic or synthetic rubber inner tube, synthetic fiber braid reinforcement, and weather-resistant thermoplastic or synthetic rubber cover. This hose is not certified non-conductive and must never be used near electrical conductors.

HOSE SAFETY TAGS

To help ensure your safety, the following DANGER tags are attached to all hose purchased from STANLEY. DO NOT REMOVE THESE TAGS. If the information on a tag is illegible because of wear or damage, replace the tag immediately. A new tag may be obtained from your STANLEY Distributor.

HOSE RECOMMENDATIONS

Tool to Hydraulic Circuit Hose Recommendations

The chart below shows recommended minimum hose diameters for various hose lengths based on gallons per minute (GPM)/liters per minute (LPM). These recommendations are intended to keep return line pressure (back pressure) to a minimum acceptable level to ensure maximum tool performance.

This chart is intended for hydraulic tool applications only, based on STANLEY tool operating requirements, and should not be used for any other applications. All hydraulic hose must have at least a rated minimum working pressure equal to the maximum hydraulic system relief valve setting. All hydraulic hose must meet or exceed specifications as set forth by SAE J517.

Figure 1. Typical Hose Connections: This diagram illustrates the standard hydraulic hose connections for the tool. It shows a hydraulic circuit with 'PRESSURE' and 'RETURN' ports, and a 'TOOL' with corresponding 'PRESSURE' (IN) and 'RETURN' (OUT) ports. Arrows indicate the direction of fluid flow: from the hydraulic circuit's pressure port, through the tool's 'IN' port, and returning via the tool's 'OUT' port to the circuit's return port. The diagram emphasizes correct connection of pressure and return lines.

HTMA / EHTMA REQUIREMENTS

HTMA HYDRAULIC SYSTEM REQUIREMENTS

Note: Do not operate the tool at oil temperatures above 140 °F (60 °C). Operation at higher temperatures can cause operator discomfort at the tool.

Note: When choosing hydraulic fluid, the expected oil temperature extremes that will be experienced in service determine the most suitable temperature viscosity characteristics. Hydraulic fluids with a viscosity index over 140 will meet the requirements over a wide range of operating temperatures.

*SSU = Saybolt Seconds Universal

EHTMA HYDRAULIC SYSTEM REQUIREMENTS

Note: These are general hydraulic system requirements. See tool specification page for tool specific requirements.

OPERATION

PREPARATION PROCEDURES

The tool, as shipped, has no special unpacking or assembly requirements prior to usage. Inspection to assure the tool was not damaged in shipping and does not contain packing debris, is all that is required.

CHECK HYDRAULIC POWER SOURCE

1. Using a calibrated flowmeter and pressure gauge, check that the hydraulic power source develops a flow of 7-9 GPM/26-34 LPM at 1500-2000 psi/105-140 bar.
2. Make certain the hydraulic power source is equipped with a relief valve set to open at 2100–2250 psi/145–155 bar minimum.
3. Check that the hydraulic circuit matches the tool for open-center (OC) operation.

CHECK TOOL

1. Ensure all tool accessories are correctly installed. Failure to properly install tool accessories can result in damage to the tool or personal injury.
2. There should be no signs of leaks.
3. The tool should be clean, with all fittings and fasteners tight.

CHECK TRIGGER MECHANISM

1. Check that the trigger operates smoothly and is free to travel between the "ON" and "OFF" positions.

INSTALL TOOL BIT

The tool accepts standard 0.580 in hex x 2-1/2 inch long hex shank tool bits.

TO INSTALL A HEX SHANK TOOL BIT

1. Push in the retainer, insert the hex shank tool bit and move the retainer back into locked position. Note the orientation of the particular tool bit that is being installed.

CONNECT HOSES

1. Wipe all hose couplers with a clean, lint-free cloth, before making connections.
2. Connect the hoses from the hydraulic power source to the hose couplers on the tool. Connect the return hose first and disconnect it last to minimize trapped pressure within the tool.
3. Observe flow indicators stamped on hose couplers to be sure that oil will flow in the proper direction. The female coupler is the inlet coupler.

Note: The pressure increase in uncoupled hoses left in the sun may result in making them difficult to connect. When possible, connect the free ends of operating hoses together.

OPERATING PROCEDURES

1. Observe all safety precautions.
2. Move the hydraulic circuit control valve to the "ON" position.
3. Place the tool bit firmly on the surface you are to work on.
4. Squeeze the trigger to start the tool. Adequate down pressure is very important.

COLD WEATHER OPERATION

If the tool is to be used during cold weather, preheat the hydraulic fluid at low engine speed. When using the normally recommended fluids, fluid temperature should be at or above 50 °F/10 °C (400 ssu/82 centistokes) before use.

STORAGE

1. Disconnect the tool from the hydraulic power source.
2. Remove the tool bit and spray the tool bit retainer area with WD-40™, inside and out.
3. Wipe clean and store in a clean, dry place.

UNDERWATER MODEL PREVENTATIVE MAINTENANCE

After each use, the movable portions of the tool that were exposed to water should be flushed with a water displacing oil, such as WD-40™. Remove any remaining water and debris as follows:

1. Turn the tool upside down (without the tool bit) and spray oil throughout the inside of the retainer nose including the retainer cap and any moving parts, also spray any of the exposed piston area to displace any remaining water.
2. Spray oil into the On/Off valve trigger slot area.
3. Dip or spray the entire tool.
4. Cycle the tool hydraulically several times before storing away.

TROUBLESHOOTING

If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem. When diagnosing faults in operation of the grinder, always check that the hydraulic power source is supplying the correct hydraulic flow and pressure to the grinder, as listed in the table. Use a flow meter known to be accurate. Check the flow with the hydraulic oil temperature at least 80 °F/27 °C.

TOOL PROTECTION & CARE

• Ensure all couplers are wiped clean before connection.
• The hydraulic circuit control valve must be in the "OFF" position when coupling or uncoupling hydraulic tools. Failure to do so may result in damage to the quick couplers and cause overheating of the hydraulic system.
• Always store the tool in a clean dry space, safe from damage or pilferage.
• Make sure the circuit PRESSURE hose (with male quick disconnect) is connected to the "IN" port. The circuit RETURN hose (with female quick disconnect) is connected to the opposite port. Do not reverse circuit flow. This can cause damage to internal seals.
• Always replace hoses, couplings, and other parts with replacement parts recommended by STANLEY. Supply hoses must have a minimum working pressure rating of 2500 psi/172 bar.
• Do not exceed the rated flow. Rapid failure of the internal seals may result. See "SPECIFICATIONS" on page 13 for correct flow rate and model number.
• Always keep critical tool markings, such as warning stickers and tags, legible.
• Tool repair should be performed by experienced personnel only.
• Make certain that the recommended relief valves are installed in the pressure side of the system.
• Do not use the tool for applications for which it was not intended.

SPECIFICATIONS

CH18 PARTS ILLUSTRATION

CH18 Parts Illustration: An exploded view diagram shows the internal and external components of the CH18 Hydraulic Chipping Hammer, with numbered parts corresponding to the parts list. Key visible components include the handle assembly (1), trigger (2), hose assemblies (8, 13, 14), valve body assembly (20-25), piston (29), retainer nose (33, 34), and outer tube (17).

CH18 PARTS LIST

UNDERWATER TOOLS DEPTH GUIDELINE

UNDERWATER MODELS ONLY

For underwater hydraulic tools, the applications are broken down into four quadrants depending on type of tool and method of operation.

The types of tools are percussive and rotational, each with different characteristics allowing for different depth operation. With percussive tools, the nitrogen accumulator PSI must counter the increase in ambient pressure found at lower depths. Since there is a maximum PSI for percussive tools, they are limited to certain depths. Rotational tools do not have accumulators and thus are capable of deeper depths.

The methods are broken into diver operated or remote operated vehicle (ROV). ROV's can reach lower depths and with an onboard hydraulic power source that is depth compensated, can operate hydraulic tools at depths of thousands of feet. ROV operation is still limited to the tool; for example, a percussive tool has the same depth limitation whether ROV or diver operated.

OPERATION OVERVIEW

RECOMMENDED HOSE DIAMETERS