1. Introduktion
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Chicago Pneumatic CP785 3/8-inch Air Power Drill. Please read this manual thoroughly before using the tool to ensure proper handling and to prevent injury or damage.

Figure 1: Chicago Pneumatic CP785 Air Power Drill with Keyed Chuck.
2. Sikkerhedsoplysninger
Overhold altid de generelle sikkerhedsforanstaltninger, når du bruger elværktøj. Manglende overholdelse af disse instruktioner kan medføre alvorlig personskade.
- Øjenbeskyttelse: Always wear ANSI-approved safety glasses or goggles.
- Høreværn: Use ear protection, especially during prolonged operation.
- Håndbeskyttelse: Brug passende handsker for at beskytte hænderne.
- Lufttilførsel: Ensure the air supply is clean, dry, and regulated to the specified pressure (90 psi).
- Slangeinspektion: Regularly inspect air hoses for damage or leaks.
- Sikkert arbejdsemne: Always secure the material being drilled to prevent movement.
- Korrekt ventilation: Arbejd i et godt ventileret område.
- Frakobl luften: Afbryd lufttilførslen, før du skifter tilbehør, udfører vedligeholdelse eller når værktøjet ikke er i brug.
- Avoid Loose Clothing: Do not wear loose clothing or jewelry that could get caught in moving parts.
3. Produktfunktioner
The Chicago Pneumatic CP785 Air Power Drill is designed for durability and smooth operation, making it suitable for various maintenance tasks.
- Powerful, energy-efficient air motor resists stalls.
- Triple idler planetary gearing ensures smooth operation and extended tool life.
- Handle exhaust reduces noise and directs air away from the work area.
- Ideal 3/8-inch multi-purpose drill.
- Pistol grip design for comfortable handling.
- Durable aluminum housing.

Figure 2: Key features of the CP785 including its pistol grip, powerful motor, and handle exhaust.
4. Indledende opsætning
4.1 Tilslutning af luftforsyning
- Ensure your air compressor is capable of providing the required air pressure (90 psi) and CFM (16.5 CFM at full load).
- Connect a 3/8-inch minimum diameter air hose to the 1/4-inch NPT air inlet on the drill.
- Install an in-line air filter/lubricator as close to the tool as possible to ensure clean, lubricated air.
- Set the air pressure regulator to 90 psi (6.2 bar) when the tool is running.
4.2 Chuck Operation (Keyed Chuck)
The CP785 features a keyed chuck for securing drill bits.
- Indsæt bit: Open the chuck jaws by turning the chuck collar counter-clockwise. Insert the drill bit into the chuck, ensuring it is centered and seated firmly.
- Spænd borepatronen: Use the chuck key to tighten the chuck jaws securely around the drill bit. Tighten in all three keyholes for maximum grip and to prevent slippage.
- Remove Bit: Loosen the chuck jaws using the chuck key and remove the drill bit.

Figur 3: Nærbillede view of the CP785's keyed chuck mechanism.
5. Betjeningsvejledning
5.1 Starting the Drill
The CP785 features a trigger throttle for variable speed control.
- Ensure the drill bit is securely installed and the air supply is connected and regulated.
- Placer borekronen på emnet.
- Gently press the trigger to start the drill. The speed is variable depending on trigger pressure.
- Apply steady, even pressure to the drill. Avoid excessive force, which can cause stalling or damage to the bit or workpiece.
- Slip aftrækkeren for at stoppe boret.
5.2 Boreteknik
- Always start drilling at a slow speed to prevent the bit from wandering.
- Increase speed as the bit penetrates the material.
- Maintain a firm grip on the drill with both hands if necessary.
- Clear chips regularly, especially when drilling deep holes.
- For metal drilling, use appropriate cutting fluid to extend bit life and improve cut quality.
6. Vedligeholdelse
Regular maintenance ensures optimal performance and extends the life of your air drill.
6.1 Smøring
The CP785 requires daily lubrication to maintain its internal components.
- Before each use, or at the beginning of each workday, add 5-10 drops of high-quality air tool oil into the air inlet.
- Run the tool for a few seconds to distribute the oil.
- If an in-line lubricator is used, ensure it is filled with air tool oil and adjusted to dispense 1-2 drops per minute.
6.2 Rengøring
- Keep the exterior of the tool clean and free of debris.
- Rengør spændepatronens kæber med jævne mellemrum for at sikre korrekt greb om borehovederne.
- Do not use harsh solvents that could damage the aluminum housing or internal seals.
6.3 Opbevaring
When not in use, store the drill in a clean, dry environment, disconnected from the air supply.
7. Fejlfinding
Se tabellen nedenfor for almindelige problemer og deres mulige løsninger.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Tool does not operate or operates slowly | Lavt lufttryk Insufficient air supply (CFM) Manglende smøring Obstructed air inlet Beskadiget luftslange | Check regulator setting (90 psi) Ensure compressor meets CFM requirements Add air tool oil Rengør luftindtagsfilteret Inspect and replace hose if damaged |
| Overdreven vibration eller støj | Slidte lejer Løse komponenter Ubalanceret borehoved | Kontakt et autoriseret servicecenter Check for loose screws and tighten Ensure drill bit is straight and properly installed |
| Borehovedet glider i patronen | Spændepatronen er ikke tilstrækkeligt strammet Worn chuck jaws Oily drill bit shank | Tighten chuck in all three keyholes Replace chuck Clean drill bit shank before insertion |
| Luft lækker | Løse beslag Beskadigede O-ringe/tætninger | Spænd alle forbindelser Replace O-rings/seals |
8. Tekniske specifikationer
Detailed specifications for the Chicago Pneumatic CP785 Air Power Drill.
| Specifikation | Værdi |
|---|---|
| Model | CP785 |
| Chuck størrelse | 3/8 tomme (10 mm) |
| Chuck-type | Indtastet |
| Strømkilde | Luftdrevet |
| Maksimal rotationshastighed | 2400 RPM |
| Hestekræfter | 0.5 HK |
| Stald moment | 3.1 ft. lbf (4.2 NM) |
| Luftindtag størrelse | 1/4 tommer NPT |
| Average CFM @ 15 Sec Run Time | 4.10 |
| CFM @ fuld belastning | 16.5 |
| Nødvendigt tryk | 90 psi (6.2 bar) |
| Minimum Hose Size | 3/8 tomme |
| Håndtag Materiale | Aluminium |
| Materiale til hus | Aluminium |
| Varens vægt | 2.25 pund (1.02 kg) |
| Produktdimensioner | 7.01 tommer (længde) |
| Lydniveau | 101 dB |
| UPC | 015451026226 |
9. Garanti og support
9.1 Garantioplysninger
The Chicago Pneumatic CP785 Air Power Drill comes with a 2-year limited warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For full warranty terms and conditions, refer to the documentation included with your product or visit the official Chicago Pneumatic webwebsted.
9.2 Kundesupport
For technical assistance, parts, or service, please contact Chicago Pneumatic customer support. You can find contact information on the official Chicago Pneumatic website or through your authorized dealer. When contacting support, please have your model number (CP785) and serial number (if applicable) ready.
10. Yderligere produkt Views

Figur 4: Side view of the CP785 air drill, highlighting its compact design.

Figur 5: Vinklet view of the CP785, showing the air inlet and trigger.





