Vent System Fan; Vent System Fan Removal; Vent System Fan Installation - MD Helicopters MD Explorer Servicing And Maintenance

CSP−900RMM−2

3. Vent System Fan

A. Vent System Fan Removal
(Ref. Figure 203)
(1). Opening right forward access door
assembly R155 and transmission access
door assembly R210 (Ref. Section
06-00-00).
(2). Detach electrical connector P513 (9).
(3). Remove hose clamps (1) securing ducts
(2 and 3) to recirculating fan.
(4). Remove screws (5) and washers (6)
attaching fan to mounting bracket (7
and 8) and remove circulating fan.
B. Vent System Fan Installation
(Ref. Figure 203)
Consumable Materials
(Ref. CSP−SPM)
Item Nomenclature
C205 Sealing Compound
C205 Sealing Compound
(1). Clean and prepare vent recirculating
fan mounting bracket for electrical
bonding (Ref. CSP-SPM, Section
20-50-00).
(2). Install recirculating fan (4) in mounting
bracket (7 and 8) with screws (5) and
washers (6). Torque screws (5).
Sealing Compound (C205)
(3). Remove old sealant and clean faying
surfaces. Apply sealing compound
(C205) to cover faying surfaces between
Page 204
Original
MD Helicopters, Inc.
Rotorcraft Maintenance Manual
21-20-00
mounting brackets and deck structure
(Ref. Section 20-50-00).
(4). Connect ducts (2 and 3) to recirculating
fan and secure with hose clamps (1).
Torque clamps (1).
(5). Attach electrical connector P513 (9) to
recirculating fan.
(6). Close right-hand forward access door
assembly R155 and transmission access
door assembly R210 (Ref. Section
06-00-00).
10 in-lb
1.1 N
m
1
20 - 25 in-lb
2.2 - 2.8 N
m
5
4
8
6
5
6
1
7
1. CLAMP, BAND TYPE
2. FLEXIBLE DUCT−TO−WATER SEPARATOR
3. DUCT ASSEMBLY ROOF DECK
4. RECIRCULATING FAN
5. SCREW
6. WASHER
7. FAN MOUNTING BRACKET FWD
8. FAN MOUNTING BRACKET AFT
9. ELECTRICAL CONNECTOR (P513)
Figure 203. Recirculating Fan
2
9
3
9G21−011