TM 9-2320-279-34-3
M978 Tankor Maintenance Procedures Instructions (Cont)
22-4. PRIMARY PUMP REPAIR (CONT).
housing (5).
(2) Remove four screws (6) lockwashers (7) washers (8),
and two coupling covers (9) from intermediate
housing (5).
(3) Remove two pipe plugs (10) from intermediate
(4) Remove eight nuts (11) from
studs (12).
(5) Matchmark and remove intermediate
housing (5) from volute casing (13).
(6) Remove gasket (14).
(7)
Place steel bar through coupling
half (15). Place other bar in between
impeller vanes (16) as deep as possible.
(8)
Hold coupling half (15) to keep it from
turning and strike end of steel bar
between impeller vanes (16) to turn
impeller (17) counterclockwise.
(9)
When impeller (17) loosens, remove steel
bar from between impeller vanes (16).
22-18