BRP-Rotax
Maintenance Manual
72-00-00
page 68
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02622
To check the spring force, apply a test load (
F
) (test weight set assy. part
no. 976995) and measure the remaining spring length VT04 (measuring
fixture part no. 976210). See Fig. 72-72.
Test load for dual valve spring configuration:
–
Test load (
F
) for inner spring
53 N (11.91 lbf)
–
Test load (
F
) for outer
133 N (29.80 lbf)
Test load for single valve spring configuration:
–
Single valve spring
200 N (45 lbf)
■
CAUTION: Replace valves shorter than the minimum length.
◆
NOTE:
The spring length should be as equal as possible on
the inlet and outlet sides (max 0.4 mm (0.016 in.) in
difference), otherwise replace the springs.
See 72-00-00 sec. 4.
F
VT04
07425
Fig 72-72
Summary of Contents for MMH-912 Series
Page 463: ......
