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For Husqvarna Parts Call 606-678-9623 or 606-561-4983
Workshop manual
Clearing Saw
Model
165R
101 88 04-26
www.mymowerparts.com

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   Summary of Contents for Husqvarna 165R

  • Page 1

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Workshop manual Clearing Saw Model 165R 101 88 04-26 www.mymowerparts.com...

  • Page 2

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Contents Technicaldata Servicedata Specialtools Fuelsystem,carburetor Electricalsystem Cylinder,piston Crankcase,crankshaft Starter Handlebars, c ontrols Enginemounting,driveshaft Transmission system www.mymowerparts.com...

  • Page 3

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Technical d ata Ignitionsystem SEM, type GA2 Ignitionadvance 24° b.t.d.c. at 142 r/s (8500 r/rein) Sparkingplug Bosch WS7F, Champion CJ7Y Sparkingpluggap 0.5 mm Carburetor Tillotson diaphragm carburetor type HS 121A Basic setting:...

  • Page 4

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R ServiceData Leakage testing Pressure: 0.08 MPa (0.8 kgf/cmz) Max. leakage: 0.02 MPa per 30 sec. (0.2 kgf/cmz per 30 sec.) Tools: 5025038-01 Pressure tester 5025045-01 Spacer sleeve (35 mm) 5025047-01 Sealing plate, inlet...

  • Page 5

    For premixed two-stroke oil a mixture of 1 part oil to 20 (5Yo) recommended. PdrOi For Husqvarna Two-stroke Oil a mixture of 1 part oil to 50 parts petrol recommended. (2Yo) is The table below shows the different mixture proportions.

  • Page 7

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Special t ools & 5025037-01 5025006-01 Vacuum tester, complete Pliers, sparking plug cover 5025018-01 NV 4 mm 5025018-01 NV 3 mm 5025064-01 NV 5 T-type Allen key 5025038-01 Pressure tester, complete...

  • Page 8

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Specialtools 5025078-01 Extractor, sealing ring 5025079-01 Sealing ring assembly sleeve ““ 5025051-01 Crimping pliers 5025083-01 Hook for tank weight 5025053-01 \,\\\\\\\’ Sealing ring assembly socket 5025086-01 NV 3 mm 5025087-01 NV 4...

  • Page 9

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Special t ools 5025106-01 Glue 5025107-01 Epoxy adhesive 5025108-01 Loctite AA (normal locking force) 5025109-01 Loctite AAV (high locking force) 5027004-01 (M12) Screw for puller www.mymowerparts.com...

  • Page 10

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 c’ 165 R Fuelsystem, c arburetor Dismantlingthe carburetor Clamp the clearing saw in fixture No 5025103-01. Fig 4.4 Back off the four screws holding the diaphragm cover in Remove the cylinder casing and blow as much dirt as place and remove the cover.

  • Page 11

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Fuelsystem, c arburetor Drill a small hole (diameter approx. 2 mm) in the two B. Meteringsystem blank plugs and prise the plugs out by means of a sharp Check that the adjusting screws are straight and that no object.

  • Page 12

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 &l 165 R Fuelsystem, c arburetor Assemblingthe carburetor The needle valve lever must not be worn either at the needle valve end or the diaphragm end (see Fig. 4:1 1). A. Pump Carefully fit the fuel filter back in place.

  • Page 13

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Fuelsystem, c arburetor When correctly adjusted, the needle valve lever should Connect the fuel line and check that it has no kinks that be on a level with the carburetor housing (see Fig.

  • Page 14

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Fuelsystem, c arburetor B. Adjusting the lowspeedneedle(L) Run the engine at maximum speed by holding the throttle control firmly open. If the setting is correct the engine should “four-stroke”, Reduce engine speed by slowly screwing in H needle until fourstroking ceases.

  • Page 15

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Fuelsystem, c arburetor tracingschedule Uneven idle Stalls when throttle opened (needs choke) Mixture grows too weak Receives no fuel — Hard to adjust Mixture too rich No idle Abnormal needle setting www.mymowerparts.com...

  • Page 16

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Electrical s ystem s A. Faulttracing Al. Dismantle the cylinder casing and remove the spar- king plug. Reconnect the plug lead and rest the sparking plug against “earth”, e.g. the cylinder,...

  • Page 17

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Electrical s ystem @ Fit puller No. 5025026-01 to the holdfast and withdraw the flywheel. NOTE: Rest the flywheel on a clean surface to avoid metal filings or metal objects being attracted to the magnets.

  • Page 18

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 65 R Electrical s ystem G spacer. Exercise care on assembly to avoid damaging the lead. Fig 5:1O After fitting the armature plate in the crankcase it will be necessary to set the timing. Rotate the plate until the...

  • Page 19

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Cylinder, p iston Dismantling Empty the fuel tank. Clamp the clearing saw in fixture No. 5025103-01. Remove the cylinder casing and clean the cooling fins of the cylinder as well as the area round the cylinder base.

  • Page 20

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Cylinder, p iston Inspection FAULT REMEDY Broken cooling fins In serious cases – change the cylinder. Damaged threads Repair the threads with HeIi-Coil inserts. Binding marks in cylinder wall (particularly Clean the damaged area with fine emery cloth to remove at exhaust port) adhering aluminium.

  • Page 21

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Cylinder, p iston Rotate the crankshaft to check that the piston can move freely. Secure the cylinder by tightening the four screws alter- nately. Fit the silencer in place. Do not forget the securing plate for the screws in the cylinder nor the two screws holding the bottom of the silencer to the crankcase.

  • Page 22

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 i65 R Crankcase, c rankshaft Z/ Dismantlingthe crankcase Empty the fuel tank. Clamp the clearing saw in fixture No. 5025103-01, Remove the following: Cylinder casing, starter, carburetor, cylinder and piston. The throttle control cable need not be removed.

  • Page 23

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Crankcase, c rankshaft ~ Inspectionof crankshaft Assembling the crankcase The crankshaft cannot be reconditioned and must be re- placed by a new one in the event of defects or damage. Some crankshafts display slight blue discoloration the webs round the crank pin.

  • Page 24

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Crankcase, c rankshaft Z-/ Fig 7:11 Check that the sealing rings are not worn or otherwise damaged (cracks in the rubber) and fit replacements if necessary, Lubricate the sealing rings with oil before fit- ting them in place.

  • Page 25

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Statier Dismantling Remove the return spring from the starter housing by turning the housing so that the spring faces the work- bench. Pull the spring out of the housing, using a suit- able pair of pliers.

  • Page 26

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Starter Fig 8:6 Wind all the starter cord round the pulley, making sure that the pulley does not rotate. Pull the cord all the way out, braking the cord pulley with your thumb. Wind the cord about another two turns round the pulley.

  • Page 27

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Handlebars, controls Adjustingthe positionof the Adjustingthe handlebars throttle control The left-hand and right-hand halves of the handlebars can be adjusted to any desired position after slackening the five screws in the clamp and then the locking screw underneath.

  • Page 28

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Handlebars, controls Adjustingthe springtensionof the throttlecontrol Fig 9:4 Back off screw B about turns. Grip sleeve C with 1-1 1/2 a pair of pliers. Slacken stop screw D and hold the throttle control firmly.

  • Page 29

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Enginemountingdriveshaft Apply a few drops of Loctite to the screws and tighten Engineunit - driveshaft the engine to the clutch housing. Dismantling NOTE: It is extremely important to ensure that the four screws are properly tightened.

  • Page 30

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Enginemounting, d riveshaft Assembly Fit new dampers and check that the locating stud in the clutch housing fits into the hole in the vibration damper. Slide the suspension tube onto the drive shaft tube but do not tighten the clamping screw.

  • Page 31

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Enginemounting, d riveshaft Fig 10:8 Inspect the drive shaft tube for damage. Dents in the tube (after a kickback, for example) may cause the driveshaft to bind in the bearings. This may give rise to vibration and, in the worst case, seizure of the bearings.

  • Page 32

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Transmission s ystem Centrifugalclutch,driveshaft Check that the clutch spring is not broken or discolor- ed by running hot, If it is, change the spring. Separate the engine unit from the clutch housing (see section 1O).

  • Page 33

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Transmission s ystem Removalof lower bearinghousing When fitting the new spring, check that its engagement point is opposite a centrifugal weight. and gear shaft Do not overload the spring on assembly. Anglegear Dismantling Mount the clearing saw in fixture No.

  • Page 34

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 Transmission s ystem 00 Replacementof lowergear shaft Mountingof upperbearing housing Fig 11:11 Fit extractor No. 5025063-01. Heat the gear housing with a blowlamp to about 130°C. Fig 11:9 Clamp the gear housing in a vice.

  • Page 35

    For Husqvarna Parts Call 606-678-9623 or 606-561-4983 165 R Transmission s ystem Lubricatingthe angle gear Fig 11:13 After carrying out work on the angle gear the housing must be packed with grease. Back off the filler plug and pack with grease until it emerges at the upper bearing housing.

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