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Accoppiamento Cilindro-Pistone - Husqvarna TE 250 2007 Werkstatt-Handbuch

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REVISIONE MOTORE
ENGINE OVERHAULING
REVISION MOTOR
MOTORUEBERHOLUNG
REVISIÓN DEL MOTOR

Accoppiamento cilindro-pistone

Diametro cilindro
Effettuare la misurazione del diametro interno (Dc), con l'ausilio di un
micrometro per diametri interni, alla distanza "A" dalla sommità di 20 mm
(250cc) o 10 mm (400-450-510 cc).
Diametro pistone
Rilevare il diametro del pistone (Dp) alla distanza "B" di 6 mm (TE-TC 250), 8
mm (SMR 400), 9 mm (TC 450-510), 10 mm (TE-SMR 450) o 11 mm (TE-
SMR 510) dalla base. Il gioco di accoppiamento risulterà = Dc-Dp.
Cylinder piston fitting
The cylinder and piston are supplied matched; if by chance cylinder liners
and pistons become mismatched then measure their diameters as follows:
Cylinder bore
Use an internal micrometer (Dc) and take the reading at "A" distance from
the top 0,80 in. (250cc) or 0.39 in. (400-450-510 cc).
Piston diameter
Take the piston diameter (Dp) at "B" distance of 6 mm/0.24 in. (TE-TC 250), 8
mm/0.31in. (SMR 400), 9 mm/0.35 in. (TC 450-510), 10 mm/0.39 in. (TE-SMR
450) o 11 mm/0.43 in. (TE-SMR 510) from the top. The clearance is = Dc-Dp.
Accouplement cylindre-piston
Diamètre chemise-cylindre:
Effectuer la mesure du diamètre intérieur (Dc), avec le secours d'un
micromètre pour intérieurs, à la distance «À» de la sommité de 20 mm
(250cc) ou 10 mm (400-450-510 cc).
Diamètre du piston
Mesurer le diamètre piston (Dp) à la distance "B" de 6 mm (TE-TC 250), 8 mm
(SMR 400), 9 mm (TC 450-510), 10 mm (TE-SMR 450) ou 11 mm (TE-SMR
510) de la base. Le jeu d'acouplement sera = Dc-Dp.
MODELLO
GIOCO (Dc-Dp)
MODEL
CLEARANCE (Dc-Dp)
MODÈLE
JEU (Dc-Dp)
TE, TC 250
0,020÷0,046 mm
(0.00079÷0.00181 in.)
SMR 400
TE, SMR 510
0,025÷0,061 mm
(0.001÷0.0024 in.)
TC 450-510
0,025÷0,055 mm
(0.0010÷0.0022 in.)
TE, SMR 450
0,020÷0,055 mm
(0.00079÷0.0022 in.)
G.24
LIMITE DI SERVIZIO
WEAR LIMIT
LIMITE DE SERVICE
0,10 mm
(0.004 in.)
0,12 mm
(0.0047 in.)
0,12 mm
(0.0047 in.)
0,10 mm
(0.004 in.)
Part. N. 8000 A7735 (07-2006)

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