Auxiliary Tools - Rotax 912 Series Maintenance Manual

11.4) Auxiliary tools

– Screwdriver ground to shape Q for piston pin circlip removal (see fig. 5)
– 2 pressure gauges, adapter for dial gauge in spark plug thread for leakage test
– valve spring pliers
– step punch for valve guide
– adjustable reamer 6,5 ÷ 7,5 mm
– valve seat rework set, valve lapping paste
– gearbox support plate
– fixing device for overload clutch
– fitting tool for "Heli-coil" inserts
– auxiliary screws for crankcase joining, 2 hex. screws M8x110, DIN 931 - 8.8
(part no. 941 171) or equivalent
– stud extraction tool
– scraper, lapping fleece, grinding wheel, cover sheet, adhesive tape
– cleaning agent, approved cleaners, funnel, graphite marker
– magnetic particle tester DEUTROFLUX
are suitable for complete combined magnetic particle crack inspection of all ferromagnetic
materials. For this purpose an A.C. field circulation can be combined with a shifted
phase A.C. circulation. Both magnetizing methods are independent from each other
and can be applied separately.
To achieve the direction changes of the magnetic field vector necessary for indication
of cracks in any direction, the alternating currents serving as current supply for the
different methods of magnetizing are dephased by 120° to each other:
a)
b)
c)
Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL II
current circulation for longitudinal cracks
field circulation for transverse cracks
auxiliary circulation for axial and radial crack indication on parts with
bores right through by using an electric auxiliary conductor (copper bar).
®
, series UHW, or equivalent. These testers
fig. 018
1
00141
page 16
Initial issue, Jan. 01/2002