1. Introducció
This manual provides essential information for the safe operation, maintenance, and troubleshooting of your PRORUN 55.5cc 20-inch Gas Chainsaw, Model PCS560C. Please read this manual thoroughly before operating the chainsaw to ensure proper use and to prevent injury or damage. Retain this manual for future reference.

Un ple view of the PRORUN 55.5cc 20-inch Gas Chainsaw, Model PCS560C, featuring a red and black engine housing, a silver Oregon bar, and a sharp chain.
2. Informació de seguretat
Operating a chainsaw can be dangerous if proper safety precautions are not followed. Always prioritize your safety and the safety of others.
Normes generals de seguretat:
- Always wear appropriate Personal Protective Equipment (PPE), including a helmet, eye protection, hearing protection, heavy-duty gloves, chainsaw chaps, and steel-toed boots.
- No feu servir mai la motoserra quan estigueu fatigat o sota els efectes de l'alcohol, drogues o medicaments.
- Inspect the chainsaw before each use for loose parts, damage, or fuel leaks. Ensure the chain brake is functional.
- Mantingueu una subjecció ferma amb les dues mans als mànecs de la motoserra.
- Keep the work area clear of other people, children, and animals. Maintain a safe distance of at least 10 feet.
- Aneu amb compte amb el rebot. Eviteu tallar amb la punta de la barra guia.
- Assegureu-vos d'una postura estable i d'equilibri abans i durant les operacions de tall.
- Transport the chainsaw with the engine off, the chain brake engaged, and the guide bar covered with its scabbard.
3. Components mésview
Familiarize yourself with the main components of your chainsaw to understand its operation and maintenance requirements.

An annotated diagram of the PRORUN 55.5cc 20-inch Gas Chainsaw, highlighting key parts and features.
- 20-inch Oregon Pro Speedcut Bar and Chain: High-performance cutting attachment.
- Fre de cadena activat per inèrcia: Safety feature designed to stop the chain rapidly in case of kickback.
- Vàlvula de descompressió: Assists in easier starting by reducing compression during pull-start.
- Spring-Assist Starting: Reduces the effort required to pull the starter cord.
- 55.5cc Full Crank 2-Cycle Engine: Provides power for cutting tasks.
- Full Magnesium Metal Crankcase: Contributes to the chainsaw's durability and longevity.
- Bucking Spikes: Provide leverage against wood for more stable cutting.
- Oregon LubriTec Automatic Oiling System: Ensures continuous lubrication of the bar and chain during operation.
- Side-Access Chain Adjustment with Captive Bar Nuts: Simplifies chain tensioning and maintenance.
- 8-Point Anti-Vibration System: Designed to reduce operator fatigue during extended use.
- Commercial-Grade Air Filter with Single-Panel Access: Provides efficient air filtration and easy access for cleaning.
4. Muntatge i muntatge
4.1 Desembalatge i contingut
Carefully remove all items from the packaging. Verify that all components are present and undamaged.

The PRORUN 55.5cc 20-inch Gas Chainsaw shown fully assembled, alongside its included accessories.
Elements inclosos:
- PRORUN 55.5cc 20-inch Gas Chainsaw (PCS560C)
- Bar and Chain Cover (Scabbard)
- Scrench Multi-Tool
- File
- Manual d'instruccions
4.2 Mescla de combustible i oli
This chainsaw operates on a 2-cycle engine and requires a specific fuel mixture. Use fresh, unleaded gasoline with an octane rating of 89 or higher, mixed with a high-quality 2-cycle engine oil at a Relació 50:1 (2.6 oz of oil per 1 gallon of gasoline). Do not use E85 fuel or automotive oil.
- Always mix fuel in a separate, approved fuel container.
- Shake the mixture thoroughly before pouring into the chainsaw's fuel tank.
- Fill the bar and chain oil reservoir with high-quality bar and chain lubricant. Do not use used oil or motor oil.
4.3 Bar and Chain Installation (if not pre-assembled)
- Assegureu-vos que el fre de la cadena estigui desactivat.
- Remove the side cover by loosening the two captive bar nuts.
- Place the chain around the clutch drum, ensuring the cutting edges face forward on the top of the bar.
- Fit the guide bar onto the bar studs, aligning the chain drive links with the groove in the guide bar.
- Replace the side cover, ensuring the chain tensioner pin engages with the hole in the guide bar. Lightly tighten the bar nuts.
- Adjust chain tension using the side-access adjustment screw. The chain should be snug against the bar but still able to be pulled freely by hand.
- Fully tighten the bar nuts securely.
5. Instruccions de funcionament
5.1 Engegada de la motoserra
Always start the chainsaw on a flat, stable surface, clear of obstructions. Ensure the chain brake is engaged before starting.
Cold Start Procedure:
- Enganxeu el fre de cadena.
- Press the primer bulb 5-7 times until fuel is visible. Do not over-prime.
- Pull the choke lever to the FULL CHOKE position.
- Place your right foot through the rear handle and hold the front handle firmly with your left hand.
- Pull the starter cord with your right hand using short, sharp pulls until the engine briefly fires (usually 1-3 pulls).
- Push the choke lever to the HALF CHOKE position.
- Continue pulling the starter cord until the engine starts and runs.
- Once running, quickly disengage the choke by blipping the throttle. Allow the engine to warm up for a few moments before disengaging the chain brake and beginning work.
Warm Start Procedure:
- Enganxeu el fre de cadena.
- If the engine is warm, do not use the choke. If it has cooled slightly, use the half-choke position.
- Estireu el cable d'arrencada fins que arrenqui el motor.
- Blipping the throttle will disengage the choke if used.
5.2 Tècniques de tall
Always plan your cuts and be aware of falling timber and kickback zones.
- Talla: Requires careful planning of the felling direction, escape routes, and proper notching techniques. Only attempt if properly trained.
- Limbing: Remove branches from a fallen tree. Work from the base towards the top, supporting the log to prevent pinching.
- Enganxament: Cutting a fallen log into shorter sections. Be mindful of tension and compression in the wood to avoid pinching the bar.
- Always use the bucking spikes for leverage when possible.
- Maintain full throttle during cutting to ensure proper chain speed and lubrication.
5.3 Aturar la motoserra
To stop the engine, simply move the ignition switch to the OFF position. Engage the chain brake immediately after stopping the engine.
6. Manteniment
Un manteniment regular és crucial per a la longevitat i el funcionament segur de la motoserra.
6.1 Daily Checks (Before Each Use)
- Check fuel and bar oil levels.
- Inspect the chain for sharpness and proper tension.
- Verify the chain brake functions correctly.
- Check for loose nuts, bolts, or screws.
- Assegureu-vos que el filtre d'aire estigui net.
6.2 Esmolat de la cadena
A sharp chain is essential for safe and efficient cutting. Sharpen the chain regularly using the provided file or a suitable chain sharpener. If you are unsure, consult a professional service technician.
6.3 Neteja del filtre d'aire
The commercial-grade air filter should be cleaned frequently, especially when working in dusty conditions. Access the air filter via the single-panel access cover. Remove debris and clean with warm, soapy water, then allow to dry completely before reinstallation.
6.4 Inspecció de la bugia
Inspect the spark plug periodically for wear, carbon buildup, or damage. Clean or replace the spark plug as needed to ensure reliable ignition. Refer to the specifications for the correct spark plug type and gap.
6.5 Automatic Oiling System
The Oregon LubriTec automatic oiling system ensures the bar and chain are continuously lubricated. Regularly check the bar oil reservoir and refill as necessary. Ensure the oil output hole on the guide bar is clear of debris.
7. Solució De Problemes
Aquesta secció aborda problemes comuns que podeu trobar i ofereix possibles solucions.
| Problema | Causa possible | Solució |
|---|---|---|
| El motor no arrenca | No fuel; Incorrect starting procedure; Flooded engine; Fouled spark plug; Clogged fuel filter | Add fresh fuel mix; Follow cold/warm start procedure; Clear flooded engine (remove spark plug, pull cord several times, dry plug); Clean/replace spark plug; Clean/replace fuel filter |
| El motor arrenca però s'atura | Incorrect fuel mix; Clogged air filter; Improper carburetor adjustment; Spark plug issue | Verify fuel mix ratio; Clean air filter; Consult service for carburetor adjustment; Inspect/replace spark plug |
| Chainsaw cuts poorly or slowly | Dull chain; Incorrect chain tension; Insufficient bar oil | Sharpen chain; Adjust chain tension; Refill bar oil reservoir, check oiler function |
| La cadena no es mou | Chain brake engaged; Chain pinched in wood; Clutch issue | Disengage chain brake; Release chain from pinch (use wedges); Consult service for clutch inspection |
| Vibració excessiva | Loose components; Damaged chain or bar | Tighten all fasteners; Inspect chain and bar for damage, replace if necessary |
If you are unable to resolve an issue using this guide, please contact PRORUN customer support.
8. Especificacions
Technical specifications for the PRORUN 55.5cc 20-inch Gas Chainsaw, Model PCS560C.
| Característica | Especificació |
|---|---|
| Marca | PRORUN |
| Model | PCS560C |
| Desplaçament del motor | 55.5 cc |
| Font d'alimentació | De gasolina (2 temps) |
| Cavalls de força | 2.7 CV |
| Longitud de la barra guia | 20 polzades |
| Pes de l'article | 14.7 lliures |
| Dimensions del producte (L x A x A) | 36.6" x 9.6" x 11.3" |
| Crankcase Material | Magnesi |
| UPC | 850025750189 |
9. Informació de la garantia
The PRORUN PCS560C Chainsaw is backed by the following limited warranties:

An image displaying the PRORUN warranty details.
- 3-Year Residential Limited Warranty: Covers defects in materials and workmanship for residential use.
- 1-Year Commercial Limited Warranty: Covers defects in materials and workmanship for commercial 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 contact PRORUN customer service.
10. Atenció al client
For technical assistance, parts inquiries, or warranty support, please contact PRORUN customer service:
- Telèfon: 1-844-905-0882
- Correu electrònic: info@proruntech.com
When contacting support, please have your model number (PCS560C) and purchase date readily available to expedite assistance.





