TM 5-5420-280-23&P
0115 00
ENGINE ELECTRICAL CONTROL BOX, SWITCH, AND INDICATORS REPLACEMENT (Contd)
INSTALLATION
1.
Install control box housing (11) on bracket (18) of pallet frame (15) with two screws (14),
washers (16), and new locknuts (17).
NOTE
Apply a light coat of hydraulic oil to O-rings at installation.
2.
Install new O-rings (6) and (10) and connectors (5) and (9) on control box housing (11) with
grommets (4) and (8) and nuts (3) and (7). Do not tighten nuts (3) and (7) until control box
harnesses (1) and (2) are installed.
3.
Install engine starter switch (32) on control box housing (11) with washer (33) and nut (34).
4.
Install engine pre-heater switch (27) on control box housing (11) with nut (26) and cap (38).
5.
Install engine oil pressure and engine temperature indicators (35) on control box housing (11) with
two nuts (31).
6.
Install lamps (36) and lamp covers (37) on indicators (35).
7.
Install harnesses (1) and (2) through nuts (3) and (7) and grommets (4) and (8) on connectors (5)
and (9) and tighten nuts (3) and (7).
NOTE
Connect electrical leads as noted at removal.
8.
Connect electrical leads (28) to engine starter switch (32).
9.
Connect electrical leads (29) and (30) to engine oil pressure and battery indicators (35).
10.
Connect electrical leads (28) to engine pre-heater switch (27).
11.
Install two ground leads (23) on control box housing (11) with washer (24) and screw (25).
12.
Install relay (19) on control box housing (11) with washer (20) and screw (21).
13.
Install electrical leads on relay plug (22) and connect relay plug (22) to relay (19).
14.
Install control box cover (12) on control box housing (11) and tighten four screws (13).
15.
Connect battery ground cable. Refer to WP 0113 00.
16.
Start engine and check control box operation. Refer to TM 9-5420-280-10.
17.
Install bridge halves on bridge pallet. Refer to WP 0018 00.
0115 00-4
