OPERATION

PREOPERATION PROCEDURES

PREPARATION FOR INITIAL USE

Each unit as shipped has no special unpacking or as- sembly requirements prior to usage. Inspection to as- sure the unit was not damaged in shipping and does not contain packing debris is all that is required. After instal- lation of a saw blade a unit may be put to use.

CHECK HYDRAULIC POWER SOURCE

1.Using a calibrated flowmeter and pressure gauge, check that the hydraulic power source develops a flow of 5–7 gpm/19–26 lpm at 1000–2000 psi/70–

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 dual spool valve is set to the hydrau- lic system type (open-center (OC) or closed-center (CC) operation).

CHECK TOOL

1.Make sure all tool accessories are correctly in- stalled. Failure to install tool accessories properly 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 fasten- ers tight.

CHECK TRIGGER MECHANISM

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

SETTING THE DUAL SPOOL FOR OC (OPEN-CENTER) OR CC (CLOSED-

CENTER) OPERATION

IMPORTANT

This tool is furnished with a ON/OFF spool

commonly referred to as a “dual spool” which permits adjustment so the tool may be operated on either an open-center (OC) or closed-center (CC) hydraulic system. The dual spool is normally set to the OC position at time of manufacture. The dual spool can also be disabled so that the tool may be set to OC only operation. For more details, please refer to the following instructions.

SETTING FOR OPEN-CENTER (OC) OR CLOSED-CENTER (CC) OPERATION

1.To set the tool for open-center (OC) system opera- tion turn the selector screw located in the top of the valve spool fully out (counter-clockwise) until it hits the stop.

2.To set the tool for closed-center (CC) system opera- tion turn the selector screw located in the top of the valve spool fully in (clockwise) until it bottoms.

TO DISABLE DUAL SPOOL OPERATION AND CONVERT TO OPEN-CENTER ONLY

OPERATION

1.Turn the selector screw located in the top of the valve spool fully out (counter-clockwise) until it hits the stop.

2.Insert the small plug from the kit (furnished with the tool) into the hole located in the top of the selector screw. Tap the plug down using a small punch and hammer. DO NOT USE ANY ADHESIVES.

TO DISABLE DUAL SPOOL OPERATION AND CONVERT TO CLOSED-CENTER ONLY OPERATION

1.Turn the selector screw located in the top of the valve spool fully in (clockwise) until it bottoms.

2.Insert the small plug from the kit (furnished with the tool) into the hole located in the top of the selector screw. Tap the plug down using a small punch and hammer. DO NOT USE ANY ADHESIVES.

BLADE INSTALLATION

1.Handle the saw blade with care. The cutting edges are sharp and careless handling could result in in- jury.

2.Install the blade over the motor shaft and onto the fixed collar so that the points of the teeth on the blade are facing clockwise as viewed from the front of the motor (see Figure 2).

3.Install the moveable collar followed by the collet nut (see Figure 3). Tighten the collet nut hard (not wrist tight).

4.Install the locking nut with internal taper facing to- ward the collet nut and tighten it hard against the collet nut.

5.As a final tightening procedure, with a wrench on each of the nuts, tighten the locking nut one half wrench flat further.

14 ► CR27 User Manual

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Stanley Black & Decker CR27 user manual Preoperation Procedures, Center Operation, Blade Installation
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CR27 specifications

The Stanley Black & Decker CR27 is a powerful and versatile tool that has been designed for both professional tradespeople and DIY enthusiasts. This cutting-edge product showcases a combination of advanced features and innovative technologies that make it a reliable choice for various projects.

One of the standout characteristics of the CR27 is its robust motor. With a maximum power capacity, this tool is engineered to handle demanding tasks with ease. Whether you're drilling through wood, metal, or drywall, the CR27 ensures maximum efficiency and performance.

The CR27 features an adjustable speed setting, providing users with the flexibility to tackle different materials and applications. The variable speed control allows for precise operation, making it easier to achieve the desired results. The tool's ergonomic design enhances comfort during prolonged use, reducing fatigue and increasing productivity.

Another highlight of the CR27 is its lightweight construction. This feature not only makes it easier to maneuver but also allows for extended periods of use without straining the user. The compact design ensures that the tool is easy to store and transport, making it perfect for jobsites or home use.

The CR27 is equipped with a rapid bit change system. This feature allows users to switch bits quickly, minimizing downtime and maximizing efficiency. The built-in LED work light illuminates dark work areas, ensuring visibility and precision even in poorly lit conditions.

Safety is a top priority with the CR27. The tool includes multiple safety features such as a lock-off switch to prevent accidental activation and an integrated overload protection system that safeguards the motor from damage during extreme use. These features make it a dependable choice for users.

Finally, the Stanley Black & Decker brand is synonymous with quality and reliability. The CR27 is backed by a strong warranty, providing users with peace of mind. With its combination of power, flexibility, and user-friendly design, the CR27 emerges as a top contender in the competitive market of power tools, perfect for any task that requires efficiency and durability.
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