INSTALL COOLING TUBE ASSEMBLY

TM 9-2835-255-34

GAS TURBINE POWER UNIT REPLACEMENT (Sheet 27 of 30)

26. INSTALL COOLING TUBE ASSEMBLY (1), PACK-

ING MATERIAL (2) AND PREFORMED PACKING (3).

Lightly coat packing material (2) with Ultra-

them assembly fluid and install onto outer

flange (4) of cooling tube (1).

Install preformed packing (3) onto gas turbine

power unit housing (5).

Insert cooling tube (1) through regenerator (6)

and onto gas turbine power unit housing (5).

d. Apply antiseize compound to two bolts (7).

Install bolts (7) but do not torque.

Apply antiseize compound to three (long)

bolts (8) and one (short) bolt (9). Loosely

install bolts (8) with washers (10), and bolt (9).

NOTE

Torque two inner bolts (7) first, then torque

outer bolts (8, 9).

27. USING TORQUE ADAPTER (11), TIGHTEN

BOLTS (7) BETWEEN 49-57 LB-IN (5.5-6.5 NM)

TORQUE. WAIT 10 MINUTES AND RETORQUE.

28. TIGHTEN BOLTS (8, 9) BETWEEN 80-100 LB-IN

(9-11 NM) TORQUE.

29. USING FEELER GAGE, CHECK GAP BETWEEN

FLANGE (12) AND GAS TURBINE POWER UNlT

HOUSING (5). THE GAP SHALL BE NO LARGER

THAN 0.002 INCH (0.051 MM). IF GAP IS GREATER

THAN 0.002 INCH, REPLACE COOLING TUBE AS-

SEMBLY (1).

30. SAFETY WIRE BOLTS (7) USING TWO WIRE

TWIST METHOD AND BOLTS (8, 9) USING SINGLE

WIRE METHOD.

Go on to Sheet 28

6-88

Change 6