Temporarily install four bolts

TM 9-2835-255-34

GAS TURBINE POWER UNIT REPLACEMENT (Sheet 22 of 30)

CAUTION

Do not install four temporary bolts (1)

without spacers (2). Bolts may extend

beyond thread depth and become lodged

in power unit housing.

NOTE

Use four of the 45 bolts removed in step

17.b. Use four nuts (callout 14, page

5-26) removed from forward and rear

module flange as spacers (2).

Temporarily install four bolts (1) and spacers

(2) with the first bolt located in a bolt hole near

the end of turnbuckle rod bearing assembly

(13). Evenly space other 3 bolts 90 degrees

apart (approximately 2, 4, 8 and 10 o'clock

positions) on mechanical housing outer flange

(3). Tighten bolts securely.

Remove lifting sling (4). Install seven mounting

bolts (5) in threaded holes (6) and set sling

aside.

q. Apply antiseize compound to four outer

threaded mounting flange holes (7).

Install new gasket (8) over two spring pins (9)

in regenerator (10).

Install turbine gearbox housing and spur gear-

shaft (11). Make sure housing is seated prop-

erly on spring pins (9) and is flush against

gasket (8) and mounting surface.

Apply antiseize compound to four bolts (12).

Install four bolts (12) and tighten between

250-325 lb-in (28-37 Nm) torque.

Go on to Sheet 23

6-83

Change 6