Thrush Aircraft S2R–T660 Maintenance Manual page 96

THRUSH AIRCRAFT INC - T660 TURBO THRUSH
E. Using (Hartzell P/N AST-2877) special torquing adapter and a standard torque wrench,
torque all eight bolts according to instructions as outlined in the latest edition of Hartzell
Propeller, Inc. Owner's Manual & Log Book No. 139.
F. Safety all mounting bolts in an airworthy manner with .032-inch minimum diameter
stainless steel wire.
G. Remove the feedback ring puller and connect the propeller reversing lever to the propeller
control linkage.
With the carbon block assembly held against one side of
the beta feed back ring, check the side clearance (Refer
to Figure 4-6). Clearances can be established by dressing
the block(s) side(s) as required.
H. Check the propeller reversing linkage on the front end of the engine for proper rigging.
I. Reinstall the spinner dome and engine cowling.
J. Perform the necessary engine run-up checks.
Thrush Aircraft Inc. recommends that the propeller be dynamically
balanced to the engine whenever a new propeller or an overhauled propeller
is installed, or any time there is a question of the propeller's balance.
Following the instruction of the propeller balancing equipment (Chadwick
Helmuth Vibrex or equivalent equipment), set the amplitude of vibration
given in IPS (inches per second) on the balancer's meter to a level of .2 or
less at 1,500 rpm Np by adding weights to the light blade(s) or spinner
bulkhead in accordance with Hartzell Propeller Owners manual P/N 139
chapter 6.
Do not add more than four (4) balance weights (P/N A-1305) in
any one stack. A maximum total of eight (8) weights are
allowed on any one clamp half.
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AIRCRAFT MAINTENANCE MANUAL
** CAUTION **
* NOTE *
* NOTE *
Effective: 12/17/03