KTM 450 SMR - Manual (Page 26)

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MAINTENANCE WORK ON CHASSIS AND ENGINE
24

Adjusting spring preload of the shock absorber ‘
x
Danger
Danger of accidents ಗThe shock absorber is under high pressure.
ಥ The shock absorber is filled with highly compressed nitrogen, so never dismantle the shock absorber or carry out any main-
tenance on it yourself.
Info
Before changing the spring preload, make a note of the present setting, e.g., by measuring the length of the spring.
ಥ Remove shock absorber. ( P. 25)
ಥ After removing the shock absorber, clean it thoroughly.
400216-10
ಥ Loosen screw ‘  .
ಥ Turn adjusting ring ‘  until the spring is no longer under tension.
Combination wrench (50329080000)
Hook wrench (T106S)
ಥ Measure the overall spring length when not under tension.
ಥ Tighten the spring by turning adjusting ring ‘  to measurement ‘ .
Specification
Spring preload 11 ‘mm (0.43‘in)
ಥ Tighten screw ‘  .
Specification
Screw, shock absorber adjusting ring M6 5 ‘Nm (3.69‘lbf‘ft)
ಥ Installing shock absorber. ( P. 25)

Adjusting riding sag ‘
x
ಥ Remove shock absorber. ( P. 25)
ಥ After removing the shock absorber, clean it thoroughly.
ಥ Choose and fit a suitable spring.
Specification
Spring rate
Weight of rider: 65… 75 ‘kg (143.3… 165.34‘lb.) 76 ‘N/mm (433.97‘lb/in)
Weight of rider: 75… 85 ‘kg (165.34… 187.39‘lb.) 80 ‘N/mm (456.81‘lb/in)
Weight of rider: 85… 95 ‘kg (187.39… 209.44‘lb.) 84 ‘N/mm (479.65‘lb/in)
Info
The spring rate is shown on the outside of the spring.
ಥ Installing shock absorber. ( P. 25)
ಥ Check the static sag of the shock absorber. ( P. 23)
ಥ Adjust the rebound damping of the shock absorber. ( P. 22)