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15

English (Original Instructions)

pull the choke lever out to the fully extended position 

(Full Choke)

 and engage the chain brake to stop the 

engine. If the ignition switch will not stop the saw when 

set to the 

stop

 position, have the ignition switch repaired 

before using the chainsaw again to prevent unsafe 

conditions or serious injury.

NOTE:

 When you are finished using the saw, always 

relieve tank pressure by loosening, then retightening, the 

chain lubricant and fuel caps. Allow the engine to cool 

before storing.

ADJUSTING IDLE SPEED

See Figure 15.

n

  If the engine starts, runs, and accelerates, but will 

not idle, turn the idle speed screw 

“T”

 clockwise to 

increase idle speed to 2600~3600 rpm.

n

  If the chain turns at idle, turn the idle speed screw 

“T” 

counter clockwise to reduce the idle RPM and 

stop the chain movement. If the saw chain still moves 

at idle speed, contact an authorised service centre 

for adjustment and discontinue use until the repair is 

made.

WARNING:

THE SAW CHAIN SHOULD NEVER TURN AT 

IDLE. Serious personal injury may result from 

the saw chain turning at idle.

PULL AND PUSH

See Figure 16.

The reaction force of the saw is always opposite to the 

direction the chain is moving. Thus, the operator must 

be ready to control the PULL when cutting on the bottom 

edge of the bar and the PUSH when cutting along the 

top edge.

Note: 

The chainsaw has been fully factory tested. It is 

normal to find some slight lubricant residue on the saw.

KICKBACK PRECAUTIONS

See Figures 17 - 18.

Rotational kickback occurs when the moving chain 

contacts an object at the Kickback Danger Zone of the 

guide bar. The result is a lightning-fast reverse reaction, 

which kicks the guide bar up and back towards the 

operator. This reaction can cause loss of control, which 

can result in serious injury.

PREPARING FOR CUTTING PROPER GRIP ON 

HANDLES

See Figure 19.

See 

General Safety Rules 

for appropriate safety 

equipment.

n

  Wear non-slip gloves for maximum grip and 

protection.

choke lever is pulled all the way out to the 

START

 

position, the throttle is set for starting. To reset the throttle  

to the 

RUN

 position, squeeze and then release the 

throttle trigger.

To start a cold engine:

n

  Turn ignition switch to the 

ON

 position.

n

  Make sure the chain brake is in the brake position by 

pushing forwards on the lever/hand guard.

n

  Fully press and release the primer bulb at least 10 

times.

n

  Pull choke lever all the way out to the 

START

 

position.

n

  When the temperature is above 10°C, pull the starter 

grip until the engine attempts to start, but no more 

than 3 times. When the temperature is below 10°C, 

pull the starter grip until the engine attempts to start, 

but no more than 5 times.

n

  Push choke lever to the 

RUN

 position. Pull starter 

grip until engine runs.

n

  Depress the trigger release. Squeeze and release 

the throttle trigger to let the engine idle. Before 

accelerating the engine or cutting wood, make sure 

the chain brake is in the 

RUN

 position by pulling back 

on the brake lever/hand guard.

CAUTION:

Failure to release partial throttle when chain brake lever 

is in the brake position will result in serious damage to 

the unit. Never squeeze and hold the throttle trigger while 

the chain brake is in the brake position.

To Start a Warm Engine:

n

  Turn ignition switch to the 

ON

 position.

n

  Make sure the chain brake is in the brake position by 

pushing forwards on the lever/hand guard.

n

  Keep choke lever on the 

RUN

 position.

n

  Pull starter grip until engine runs, but no more than 5 

times. If engine does not start after 5 pulls, use cold 

engine starting procedure.

n

  Depress the trigger release. Squeeze and release 

the throttle trigger to let the engine idle. Before 

accelerating the engine or cutting wood, make sure 

the chain brake is in the 

RUN

 position by pulling back 

on the brake lever/hand guard.

STOPPING THE ENGINE

See Figures 7 and 14.

Release the throttle trigger and let the engine return to 

idle. To stop the engine, move the ignition switch to the 

stop

 (0) position. Do not put the chainsaw on the ground 

when the chain is still moving. For additional safety, set 

the chain brake when the saw is not in use.

In the event that the ignition switch will not stop the saw, 

Summary of Contents for RCS4235B Type III

Page 1: ...CHAINSAW ORIGINAL INSTRUCTIONS Important It is essential that you read the instructions in this manual before assembling maintaining and operating this machine RCS4235B Type III RCS4240B Type III...

Page 2: ...w your saw works Do not operate a chainsaw that is damaged improperly adjusted or not completely and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is rel...

Page 3: ...chainsaw in a tree Beware of the emission of exhaust gases lubricant mist and saw dust This product is very noisy when operating to prevent long term hearing damage wear hearing protection and keep o...

Page 4: ...height Follow the manufacturer s sharpening and maintenance instructions for the saw chain Use only replacement bars and chains specified by the manufacturer or the equivalent NOTE Refer to Operation...

Page 5: ...ch 14 Ignition switch in the run position Figure 11 13 Primer bulb Figure 12 15 Choke lever 21 Start position 22 Run position Figure 13 2 Trigger release 3 Throttle trigger Figure 14 14 Ignition switc...

Page 6: ...tate clutch cover knob clockwise to secure 12 Clutch cover lock knob 11 Chain tensioning dial Figure 44 65 Loosen chain 66 Tighten chain Figure 46 67 Raker depth gauge clearance Figure 47 68 Inspect d...

Page 7: ...ating this equipment No smoking sparks or open flame Hold and operate the saw properly with both hands Do not operate the saw using only one hand Engines produce carbon monoxide which is an odorless d...

Page 8: ...eaded petrol intended for motor vehicle use with an octane rating of 91 R M 2 or higher Use 2 stroke oil for air cooled engines Mix the fuel mix thoroughly and also each time before refueling Turn ign...

Page 9: ...ar Rotation direction to loosen the guide bar The following signal words and meanings are intended to explain the levels of risk associated with this product SYMBOLS SIGNAL MEANING DANGER Indicates an...

Page 10: ...ndle located at or toward the front of the chain saw This handle is for the left hand Guide Bar A solid railed structure that supports and guides the saw chain Kickback The backward or upward motion o...

Page 11: ...0 05 inch Chain type 3 8 low profile full complement 3 8 low profile full complement Drive sprocket 6 teeth x 3 8 6 teeth x 3 8 Engine displacement 42 cm3 42 cm3 Maximum engine power ISO 7293 1 7 kW...

Page 12: ...h Oregon saw chain Model name RCS4235B Type III RCS4240B Type III Guide bar no silkscreen Carlton part number 14 10W N1 MHC 16 10W N156 MHC Chain Carlton part number N1C BL 52E N1C BL 56E Guide bar no...

Page 13: ...ain is very sharp Always wear protective gloves when performing maintenance on the chain n Stop the engine before setting the chain tension n Slightly loosen the clutch cover lock knob by pressing in...

Page 14: ...as knowledge of the project you are attempting Before use of this product familiarise yourself with all operating features and safety rules Bumper Spike The integral bumper spike see figure 1 may be u...

Page 15: ...s normal for the engine to emit smoke during and after the first use ADDING BAR AND CHAIN LUBRICANT See Figure 6 Use RYOBI Bar and Chain Lubricant It is designed for chains and chain oilers and is for...

Page 16: ...led all the way out to the START position the throttle is set for starting To reset the throttle to the RUN position squeeze and then release the throttle trigger To start a cold engine n Turn ignitio...

Page 17: ...learly BASIC OPERATING CUTTING PROCEDURES It is strongly suggested that you seek professional training in the safety and use of this tool Practice cutting a few small logs on a saw horse or cradle usi...

Page 18: ...all logs on a saw horse or another log while bucking n Keep a clear cutting area Make sure that no objects can contact the guide bar nose and chain during cutting this can cause Kickback Refer to Kick...

Page 19: ...stic parts Chemicals can damage weaken or destroy plastic which may result in serious personal injury LUBRICATION All of the bearings in this product are lubricated with a sufficient amount of high gr...

Page 20: ...re abraded by mud or sand on the wood have an authorised service centre sharpen the chain NOTE Inspect the drive sprocket for wear or damage when replacing the chain If signs of wear or damage are pre...

Page 21: ...rom impurities CLEANING THE AIR FILTER See Figures 58 59 n Activate the chain brake n Remove the two screws holding the Engine cover n Lift the front of the Engine cover past chain brake lever n Lift...

Page 22: ...6 This engine uses a Champion RCJ4 or RCJ6Y or NGK BPMR7A with 025 in electrode gap Use an exact replacement and replace every 50 hours or more frequently if necessary n Remove the spark plug lead by...

Page 23: ...Squeeze primer bulb several times to purge fuel from carburettor n Drain all bar and chain lubricant from tank into a container approved for lubricant n Always place the scabbard over the guide bar an...

Page 24: ...res L Low Jet adjustment Contact an authorised service centre for carburettor adjustment Engine starts but will not run properly at high speed Carburettor requires H High jet adjustment Contact an aut...

Page 25: ...may be dull or bar may be damaged If no lubricant is present contact an authorised service centre Engine starts and runs but chain is not rotating Chain brake is engaged Release chain brake Refer to...

Page 26: ...trade mark serial number markings have been defaced altered or removed any damage caused by non observance of the instruction manual any non CE product any product which has been attempted to be repai...

Page 27: ...tell Limited London Road Nottingham NG2 3HW Phone 0115 986 2161 Email service hentonandchattell com Garden Machines Northampton 66 70 Kingsthorpe Road NN2 6HD Northampton Phone 01604 716222 Email jack...

Page 28: ...006 42 EC is in conformity with the provisions of the following other EC Directives EMC Directive 2004 108 EC Noise Emission Directive 2000 14 EC amended by 2005 88 EC and Gas Emission Directive 97 68...

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