TM 9-2320-260-20
14-13. CONTROL SWITCH, RESISTOR, AND
LEADS REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
REFERENCES (TM)
APPLICABLE MODELS
TM 9-2320-260-10
All
TM 9-2320-260-20P
MATERIALS/PARTS
EQUIPMENT CONDITION
Six lockwashers
q Parking brake set (TM 9-2320-260-10).
Two locknuts
q Hood raised and secured (TM 9-2320-260-10).
1. Remove nut (1), lockwasher (2), locking ring (3), data plate (4), control switch (12), and nut ( 15) from
bracket (6). Discard lockwasher (2).
NOTE
Tag all leads for installation.
2. Remove three screws (8), lockwashers (9), and four leads (10), (11), (13), and (14) from control
switch (12). Discard lockwashers (9).
3. Remove two locknuts (16), screws (5), and bracket (6) from instrument panel (20). Discard
locknuts (16).
4. Remove two screws (19), lockwashers (18), and resistor (17) from firewall (7). Discard
lockwashers (18).
5. Disconnect lead (13) from connector (22) and remove lead (13) from grommet (21) in firewall (7).
6. Disconnect lead (11) from wire (24).
7. Remove screw (26), clamp (25), and lead (11) from heater (23).
8. Remove grommet (27) and lead (11) from firewall (7).
1.
Connect lead (11) to wire (24) and insert lead (11) through hole in firewall (7).
2.
Install lead (11) and clamp (25) on heater (23) with screw (26).
3.
Place grommet (27) around lead (11) and install lead (11) in firewall (7).
4.
Connect lead (13) to connector (22) and insert lead (13) through grommet (21) in firewall (7).
Install resistor (17) on firewall (7) with two new lockwashers (18) and screws (19).
5.
6.
Install four leads (10), (11), (13), and (14) on control switch (12) with three new lockwashers (9) and
screws (8).
Install bracket (6) on instrument panel (20) with two screws (5) and new locknuts (16).
7.
Install nut (15), control switch (12), data plate (4), and locking ring (3) on bracket (6) with new
8.
lockwasher (2) and nut (1).
14-24