Husqvarna 327PT5S Instruction manual

Workshop manual
327 PT5S
English

1
General recommendations __________________ 2
Saw head, dismantling _____________________ 3
Saw head, assembly ______________________ 5
1. Output shaft __________________________ 5
2. Input shaft ___________________________ 5
3. Oil pump ____________________________ 5
Telescopic tube, dismantling _________________ 6
Telescopic tube, assembly __________________ 8
Workshop Manual
pole saw
model 327 PT5S
© Husqvarna AB, Sweden 2011
Contents

2
General recommendations
Bear in mind:
!Do not start the machine without making sure the
cutting attachment and all the safety features are
tted and working properly.
! Do not touch hot components, e.g. the mufer before
it has cooled sufciently to avoid burns.
! Avoid getting petrol or oil on your skin or in your
mouth.
Use a barrier cream on your hands. This reduces the
risk of infection and makes dirt easier to wash away.
Long term contact with engine oil can represent a
health hazard.
! Never start the engine indoors. Exhaust fumes are
poisonous! They contain carbon monoxide, an
odourless, poisonous and highly dangerous gas.
! Wipe up oil spills from the oor immediately to avoid
slipping.
! Do not use tools that are worn or t badly, for example
on nuts and screws.
+ Always work on a clean bench.
+ Always work logically to ensure all parts are tted
correctly and that nuts and screws are tightened.
+ Use special tools where recommended to be able to
carry out the work correctly.
The workshop used to carry out repairs must be equipped with
safety devices in accordance with local directives.
No one may carry out repairs without having read and
understood the contents of this workshop manual.
Thisworkshopmanualcontainsthefollowingboxesinrelevant
places.
WARNING!
The warning box warns of the risk of personal
injury if the instructions are not followed.
!
NOTE!
This box warns of damage to material if the
instructions are not followed.
The machine is type approved for safety in accordance with
applicable legislative demands with the equipment specied
in the operator’s manual. The assembly of other equipment or
accessoriesorsparepartsnotapprovedbyHusqvarnacanresult
in the failure to meet these safety demands and that the person
carrying out assembly bears responsibility for this.
Fire hazard
Handle petrol with respect, as it is extremely inammable.
Never refuel while the engine is running.
Do not smoke and ensure there are no open ames or sparks
in the vicinity.
Never start the engine if the machine is leaking fuel or if there
has been a spillage when refuelling. Allow the remaining fuel
to evaporate rst.
Make sure there is a working re extinguisher close at hand.
Do not try to extinguish a petrol re with water.
Poisonous fumes
When using cleaning agents, read the instructions carefully.
Ensure there is good ventilation when handling petrol and
other volatile uids.
The engine’s exhaust fumes are poisonous. Test run the
engine outdoors.
Special tools
Some of the work described in this workshop manual requires
special tools. In each section where this is necessary there is
a picture of the tool and an order number.
We recommend the use of special tools in order to avoid
personal injury and expensive damage to parts in question.
Contact faces and gaskets
Ensure all sealed surfaces are clean and free from gasket
residue. When cleaning use a tool that will not damage
the contact face. Any scratches or unevenness should be
removed using a at ne cut le.
Sealing rings
Always replace a sealing ring that has been dismantled. The
delicate sealing lip can be easily damaged resulting in poor
sealing ability. The area that the seal is designed to make
airtight must also be completely undamaged.
Lubricate the sealing lip with grease before it is tted and
ensure that it is not damaged e.g. by shoulders and splines
on a shaft. Use tape or a conical sleeve as protection.
It is important that the sealing ring faces in the right direction
for it to function as intended.

3
Saw head
Dismantling
Dismantle the bar and chain.
Remove the saw head from the telescopic
tube.
Saw head
Dismantling
Dismantle the saw head from the
telescopic tube.
1. Remove the nut (A) and lift off the
cover (B), and chain and bar.
2. Loosen the screw (C).
3. Unscrew the locating screw (D) as far
as required to be able to twist the saw
head and detach it from the telescopic
tube.
Remove the drive wheel and the plastic
cover (F). 4. Remove the nut and washer holding the ywheel in place.
5. Remove the drive wheel.
6. Remove the screw (E) and pry off the
plastic cover (F) using a screwdriver.
Remove the screws holding the oil tank in
place. 7. Removethethreescrews holdingtheoil tank in place.
Carefully remove the oil tank. 8. Carefully lift off the oil tank straight up
from the oil pump to prevent the oil
screen (G) from sliding off the hose and
falling into the tank.

4
Prise off the oil pipe connection at the bar
mounting. Remove the pump unit from the
drive axle.
9.Pry off the oil pipe from the connection
atthebarmountingusingascrewdriver.
Begin at the front end.
10.Remove the pump unit from the drive
axle.
Removethescrew(H)completelyandpress
thepumpaxleoutthroughthe saw housing. 11. Remove the screw (H) completely.
12.Pressthepumpaxleoutthroughthesaw
housing.
Dismantle the input shaft. 13.Removethelarge circlip holding the ball
bearing for the input shaft.
14.Heat the saw housing to approx. 110°C
and knock it against a wooden block so
that the input shaft with the ball bearing
falls out.
Remove the output shaft. 15. Remove the output shaft (A) by rst
removing the plug (B) using a suitable
mandrel (screwdriver) and hammer.
Alternately insert the mandrel in both
cut-outs in the gear housing to press
the plug straight out to prevent it from
getting stuck sideways.
NOTE!
The small circlip holding the ball
bearing against the shaft does not
have to be removed.

5
579 06 49-01
Saw head
Assembly
Clean and inspect all components.
Clean the tank venting filter and the oil
screen.
Saw head
Assembly
Clean and inspect all components.
Replace any worn or defective
components.
Clean the tank venting filter (A) using
compressed air.
Clean the oil screen (B) and rinse the
inside of the oil tank using thinner if
required.
Assemble the different components in the
reverse order as set out for dismantling.
Assembly sequence:
1. Output shaft
Press the ball bearing (A) on the shaft (B).
Fit the circlip (C).
Heat the saw body to 110°C with a hot air
gun.
Fit the ball bearing (D) using a suitable
mandrel.
Lubricate the sprocket with gear housing
grease 579 06 49-01 and push the shaft
into bearing seating.
Fit the cover (E) using a plastic hammer.
2. Input shaft
Press the ball bearing (F) and the pump
drive (G) onto output shaft (H).
Fit the circlip (I).
Lubricate the gear with gear housing
grease 579 06 49-01 and insert the shaft
in the bearing seating while the saw
housing is still hot.
Fit the circlip (J).
3. Oil pump
Check that the O-ring (A) is not damaged.
Fit a new one if required.
Push the oil pump (B) into the pump
housing.
Fit the screw (C).
Press the oil pipe (D) into place and make
sure that the connection (E) at the bar
mounting is correct and seals against the
bar as intended.

6
502 50 18-01
Put the oil tank and the saw housing
together.
Tighten the three screws and t the other
parts in the reverse order as set out for
dismantling.
Put the oil tank and the saw housing
together. Do not forget the oil screen (A).
Make sure it is clean and not damaged.
Check that the tank venting lter (B) is clean.
Tighten the three screws.
Assemble the remaining components in the
reverse order as set out for dismantling.
Telescopic tube
Dismantling
Remove the saw head from the telescopic
tube.
Remove the telescopic tube from the
clutch cover.
Telescopic tube
Dismantling
Remove the saw head from the telescopic
tube as described above.
Remove the telescopic tube from the
clutch cover.
Loosen both screws (A) (one on each
side).
Loosen the screws (B).
Pull off the telescopic tube and allow the
throttle control to remain suspended in its
cabling.
Pull out the drive shaft (A) and the plastic
pipe (B) from the engine end of the
telescopic tube.
Then also pull out the long drive shaft. Note
thattheshaft hasasmall48 cmcirclipatthe
shaftend.Theshaftcanthereforebeslidout
from the other direction.
Pull out the drive shaft (A), the plastic
pipe (B) followed by the long drive shaft
from the engine end of the telescopic
tube.

7
Pull out the drive shaft (C) at the saw head
end of the telescopic tube.
Loosen the screw holding the throttle
control cover (I).
Loosen the three screws (J) holding the
clamping sleeve.
Slide the throttle control cover and the
clamping sleeve off the telescopic tube.
Separate the clamping sleeve with a
screwdriver if required.
Remove the screw (K) and pull out
the pipe (L) together with the rubber
sleeve (M) from the telescopic tube.
TIP!
Press a screwdriver in between the
rubber sleeve and the tube and spray with
silicone to facilitate dismantling.
Remove the circlip (N), the ball
bearing (O) and the axle control (P) from
the bearing cage (Q).
Pull springs and ball bearings out of the
telescopic tube.
NOTE!
Note which direction the axle
control (P) is turned in the ball
bearings and the telescopic tube.
Loosen the circlip (D) anticlockwise and let
the pipe (E) jump out.
Loosen the screws (F).
Pull out the clamping sleeve (G) and the
telescopic pipe (E) from the telescopic
tube (H).
Pull out the drive shaft (C) at the saw head
end of the telescopic tube.
Loosen the circlip (D) anticlockwise and let
the pipe (E) jump out.
Loosen the screws (F).
Pull out the clamping sleeve (G) and the
telescopic pipe (E) from the telescopic
tube (H).
Loosen the screws holding the throttle
control cover and the clamping sleeve.
Remove the screw (K) and pull out the pipe
(L) together with the rubber sleeve (M) from
the telescopic tube.

8
AA
A
A
Telescopic tube
Assembly
Assemble the different components in the
reverse order as set out for dismantling.
First t the axle control (P) in the ball
bearing (in the right direction) and then the
ball bearing in the bearing cage.
Then push the bearing cage into the
rubber sleeve.
Slide the pipe (L) over the bearing cage
and make sure the spring tongues (A) on
the bearing cage snap in place on the tube.
Lubricate all components with a thin layer
of grease and continue assembling.
Connect the 3 springs with the bearing
cages (A).
Make sure they are turned in the right
direction so that the axle control in the ball
bearing protrudes into the telescopic tube.
Do not forget then to tighten the screw that
ts in hole (B) and lock the pipes in relation
to each other.
Finish by tting the throttle control and saw
head.

2011W21
115 43 46-26