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HYDRAULIC PUMP ASSEMBLY, DRIVE GEARS, AND ADAPTER REPLACEMENT
Schematic Drawing - TM-5-5420-280-23-P0605

TM-5-5420-280-23-P Rapidly Emplaced Bridge (REB) NSN: 5420-01-481-3959 Manual
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TM 5-5420-280-23&P
0104 00
HYDRAULIC PUMP ASSEMBLY, DRIVE GEARS, AND ADAPTER REPLACEMENT (Contd)
REMOVAL
CAUTION
Cap or plug all hoses, 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 hoses for installation.
Have container ready to catch oil.
1.
Remove oil supply hose (3) from tee fitting (4) on hydraulic pump assembly (5).
2.
Remove oil pressure hose (7) from elbow (6) on hydraulic pump assembly (5).
3.
Support hydraulic pump assembly (5) and remove four screws (8), lockwashers (9), and pump (5)
from adapter housing (1) on engine (11). Discard lockwashers (9).
4.
Remove drive coupler (10) from engine drive gear (2) if not removed with pump (5).
5.
Loosen nuts (12) and (14) and remove bypass tube (13) from shutoff valve (43) and adapter (19) on
tee fitting (4) of pump (5).
6.
Loosen nut (27) and remove shutoff valve (43) from tube (28) on tee fitting (30).
7.
Remove two adapters (26) and O-rings (15) from shutoff valve (43). Discard O-rings (15).
8.
Loosen nut (29) and remove tube (28) from tee fitting (30).
9.
Loosen nut (31) and remove elbow (6) from tee fitting (30).
10.
Loosen nut (32) and remove tee fitting (30) from pump adapter (34) on side of pump (5).
11.
Remove two screws (36) and (37), four lockwashers (35), adapter (34), and O-ring (33) from side of
pump (5). Discard lockwashers (35) and O-ring (33).
12.
Loosen nut (20) and remove adapter (19) from tee fitting (4).
13.
Loosen nut (21) and remove tee fitting (4) from elbow (22).
14.
Remove two screws (17) and (18), four lockwashers (16), adapter (24) with elbow (22), and
O-ring (25) from side of pump (5). Discard lockwashers (16) and O-ring (25).
15.
Loosen nut (23) and remove elbow (22) from adapter (24).
16.
Remove locknut (38), washer (39), and pump drive gear (40) from pump shaft (41) and key (42).
Discard locknut (38).
17.
Remove five screws (48), lockwashers (49), and adapter housing (1) from engine (11). Discard
lockwashers (49).
18.
Remove screw (47) washer (46), and engine drive gear (2) from engine crankshaft (45) and key (44).
1
3
2
11
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10
5
9
8
6
7
0104 00-2






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