Dolmar PS-421 Manuale Utente

1Operator’s and Safety Manualfor Gasoline Chain Saws WARNING!Read and understand this Manual. Always follow safety precautions in the Operator’s and S

109101112Position the chain saw in such a way that your body is clear of the cutting attachment whenever the engine is running (g. 10).Don’t put pres

1113To avoid kickbackThe best protection from personal-injury that may result from kickback is to avoid kickback situations: 1. Hold the chain sa

12161415To avoid pushback1. Be alert to forces or situations that may cause material to pinch the top of the chain.2. Do not cut more than

1345°45°= cutting down area2121718191/10∅1/5∅11/2" (4cm)2021222345°First clear the tree base and work area from inter-fering limbs and

141232425262728Begin the felling cut slighty higher than the felling notch and on the opposite side of the tree (g. 22). Then cut horizontally throug

1512329303132WARNING!There is an extreme danger of kickback at this point. Extra caution must be taken to maintain control of the saw.

161. Relieving cut2. Cross cutTension sidePressure side1. Relieving cut2. Cross cutTension sidePressure side333435Maintenance and RepairNever operate

17Denomination of componentsIndicate when ordering spare parts!Identication plateSerial no.Year of manufacture 1 Handle 2 Cover 3 Hood lock 4

18Stroke volume cu. in (cm)3 2.1 (34,7) 2.6 (42,4)Bore inch (mm) 1.50 (38) 1.65 (42)Stroke inch (mm) 1.20 (30,6) 1.20 (30,6)Max. power at spee

195 76 5 4123STOPPut on the guide bar (7). Make sure that the pin (5) of the chain tensioner engages in the hole in the guide bar.Mounting the guide b

2EMISSIONS COMPONENT DEFECT WARRANTY COVERAGEDOLMAR warrant to the initial retail purchaser and each subsequent owner, that this utility equipment was

20249 1121238109Replace the sprocket guard (3).IMPORTANT:Lift the saw chain over the chain catcher (12).Tighten the nuts (2) only hand-tight to begin

21STOP24Checking the chain tensionThe tension of the chain is correct if the chain rests against the bottom side of the guide bar and can still

225761235 4STOPLift the chain (6) over the sprocket (5).CAUTION:Do not insert the chain between the chain sprocket and the disc.Guide the chain from a

236 82932 10STOP24Pull the chain (6) around the sprocket nose (8) of the guide bar in the direction of the arrow.Replace the sprocket guard (3).IMPO

2412347986 5STOPMounting the guide bar and saw chainPlace the saw on a stable surface and perform the following work steps in order to install the gui

258 10121143215Pull the chain (8) around the sprocket nose (10) of the guide bar in the direction of the arrow.Line up the holes in the sprocket gua

26121Checking the chain tensionThe tension of the chain is correct if the chain rests against the bottom side of the guide bar and can still be

27Chain oilUse an oil with adhesive additive for lubricating the chain and guide bar. The adhesive additive prevents the oil from being ung off the c

28STOPRefuellingFOLLOW THE SAFETY PRECAUTIONS!Be careful and cautious when handling fuels.The engine must be switched off!Thoroughly clean the area ar

292 31+-STOPChecking the chain lubricationNever work with the chain saw withoute sufcient chain lubri-cation. Otherwise the service life of the chai

3The PS-351, PS-421 will be delivered in a protective cardboard box to prevent transport damage. Cardboard is a basic raw material and is consequently

30STOP145 32STOPONStarting the engineDo not start the chain saw until after it is completely as-sembled and checked!Move at least 3 meters / 10 feet a

3178Working in winterIn order to prevent carburetor icing in conditions of low tempe-rature combined with high humidity, and below + 40°F (+ 5°C) in o

32S HLSERVICEAdjusting the carburetorCAUTION: Carburetor adjustment may only be done by a specialist DOLMAR service center! Do not undertake any adjus

33ααββmin. 0.11” (3 mm)STOPThe sharpening angle (α) must be identical for all cutters!30° for chain type 092, 484The teeth will have the proper a

341 24/5Chain typ484 (.325")Chain typ092 (3/8")Files and how to work with themUse a special saw chain round le for sharpening. Standard rou

35Cleaning the inside of the sprocket guardCAUTION: Before doing any work on the guide bar or chain, always switch off the engine and pull the plug ca

368 12 1 1 9 Check the sprocket before mounting a new chain.Worn out sprockets (8) may damage the new chain and must therefore be replaced.Remove the

37Cleaning the air lter127345346CAUTION: To prevent eye injury, always wear eye protection when cleaning the lter with compressed air!Do not use fue

3811 1213STOPReplacing the spark plugCAUTION:Do not touch the spark plug or plug cap if the engine is running (high voltage).Switch off the engine bef

391294101211786513314Replacing the starter cable/ Replacing the return spring pack/Replacing the starter springUnscrew four screws (1).Remove fan hous

4145 6 732Delivery inventorySymbolsYou will notice the following symbols on the chain saw and in the Operator’s and Safety Manual:In case one of the p

4016Replacing the fuel lterThe felt lter (16) of the suction head can become clogged. It is recommended to replace the suction head once

41General Chain saw Clean exterior, check for damage. In case of damage, have repaired by a qualied service center immediately Saw chain

42Service, spare parts and guaranteeMaintenance and repairThe maintenance and repair of modern engines as well as all safety devices require qualied

43Trouble shootingMalfunction System Observation CauseChain does not run Chain brake Engine runs Chain brake actuated.Engine does not start or

44Extract from the spare parts list Use only original DOLMAR parts. For repairs and replacement of other parts, see your DOLMAR service center.P

45Extract from the spare parts list Use only original DOLMAR parts. For repairs and replacement of other parts, see your DOLMAR service center.P

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48 Specications subject to change without noticeChangements sans préavisForm: 995 701 380 (7.11 GB )DOLMAR POWER PRODUCTSPO Box 5007AlpharettaGA 3000

5Safety precautions for chain saw operatorsWhile operating the chain saw please observe the following rules:a) Contact of the guide bar nose w

612max. CKA 45Omax. CKA 40OC USGeneral Safety PrecautionsThe use of any chain saw may be hazardous. At full throttle chain speed can reach 45 mph (20

734The sawParts of the chain saw: illustrations and description of parts see page 17.WARNING !Never modify a chain saw in any way. Only at-ta

86510 feet5a6aChain saw operating instructionsFor assembly follow the procedure in the appropriate section "Mounting Guide Bar and Chain" o

97Important adjustmentsWARNING!At correct idle speed, chain should not turn. For di-rections to adjust idle speed, see the appropriate section of this