TM 5-5420-280-23&P
0063 00
WINCH CONTROL BLOCK AND ADAPTER PLATE REPLACEMENT (Contd)
REMOVAL
CAUTION
Cap or plug all hoses, tubing, connections, and openings
immediately after disconnection to prevent contamination. Remove
caps or plugs prior to installation. Failure to do so may result in
damage to equipment.
NOTE
Tag tubing for installation.
Have container ready to catch oil.
1. Disconnect brake tube (17) from swivel fitting (14) on control block (5).
2. Disconnect pump overflow tube (16) from swivel fitting (11) on control block (5).
3. Remove screw (7), four screws (6), control block (5), and two O-rings (4) from adapter plate (3).
Discard two O-rings (4).
4. Remove eight screws (9), adapter plate (3), and two O-rings (2) from pump housing (1). Discard two
O-rings (2).
5. Remove screw (12), seal washer (10), swivel fitting (11), and seal washer (10) from control block (5).
6. Remove screw (15), seal washer (13), swivel fitting (14), and seal washer (13) from control block (5).
7. If neccessary, remove three pressure test fittings (8) from control block (5).
INSTALLATION
NOTE
The pallet hydraulic system is self-bleeding, and with exception of
the telescopic tube hydraulic cylinders, there is no requirement for
bleeding air from the system.
1. If removed, install three pressure test fittings (8) on control block (5).
2. Install seal washer (10), swivel fitting (11), and seal washer (10) on control block (5) with screw (12).
Do not tighten screw (12) until pump overflow tube (16) is installed.
3. Install seal washer (13), swivel fitting (14), and seal washer (13) on control block (5) with screw (15).
Do not tighten screw (15) until brake tube (17) is installed.
NOTE
Apply a light coat of oil to O-rings at installation.
4. Install adapter plate (3) on pump housing (1) with two new O-rings (2) and eight screws (9). Tighten
screws (9) 27 lb-ft (37 Nm).
5. Install control block (5) on adapter plate (3) with two new O-rings (4), four screws (6), and screw (7).
Tighten screws (6) and (7) 24 lb-ft (32 Nm).
6. Connect pump overflow tube (16) on swivel fitting (11) of control block (5) and tighten screw (12) on
swivel fitting (11).
7. Connect brake tube (17) on swivel fitting (14) on control block (5) and tighten screw (15) on swivel
fitting (14).
8. Connect winch hydraulic hoses. Refer to WP 0069 00.
9. Connect control valve connectors, pressure control valve connector, proportional valve connector, and
pressure sensor connector. Refer to WP 0065 00.
0063 00-2
