Fan And Mounting Ring Assembly; Heat Exchanger - Aerotech BT 400-46 Installation And Operation Maintenance

Section 5
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5.27 Heat Exchanger Assembly Installation
5.28 To install heat exchanger assembly, proceed as follows:
(a) Place heat exchanger on trailer assembly and align with engine. Using shims under heat
(b) Tighten the 4 mounting bolts.
(c) Install sensing element in discharge air stream and install duct adapter.
(d) Install v-belt. Ensure proper belt tension.
(e) Install capillary tube cover. Lift hood heater and install the 8 bolts.
5.29

Fan and Mounting Ring Assembly

5.30 The fan supplies all the air necessary for the operation of the heater. Power for the fan is transmitted by a
flexible rubber bushing which mate with the drive coupling on the engine and a driven coupling which is
pressed onto the fan shaft. A cast steel mounting ring supports the fan and associated parts.
5.31 Fan and Mounting Ring Removal
5.32 To remove fan and mounting ring assembly, proceed as follows:
(a) Remove heat exchanger assembly following procedures listed in paragraph 5.25.
(b) Remove the 3 bolts securing mounting ring to casing and remove ring.
5.33 Fan and Mounting Ring Installation
5.34 To install the fan and mounting ring assembly, reverse the removal procedures.
5.35

Heat Exchanger

5.36 Heat Exchanger Disassemble
5.37 To remove the heat exchanger, proceed as follows:
(a) Remove heat exchanger assembly following procedures listed in paragraph 5.25.
(b) Remove fan and mounting ring assembly following procedures listed in paragraph 5.31.
. (c) Disengage clamp from notches in combustion chamber. Remove nozzle holder and combustor
(d) Remove fuel lines from nozzle holder..
(e) Remove ignition cable from igniter plug.
(f) Remove exhaust stack and cover by removing the 12 screws and washers. Remove gasket.
(g) Remove heat exchanger from heat exchanger housing by pulling the heat exchanger from the
exchanger mounting brackets may be required to obtain proper alignment. Maximum parallel
misalignment is 0.015 inches. Maximum angular misalignment is 0.056 inches.
plate.
front of housing.
AEROTECH HERMAN NELSON INTERNATIONAL INC.
100 Eagle Drive, Winnipeg, Manitoba Canada R2R 1V5
Phone: 204-633-1999 (24 Hours) Fax: 204-694-1612 Email:
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