TM 9-2320-279-34-3
M978 Tanker Maintenance Procedures Instructions (Cont)
(10)
Hold coupling half (15) to keep from
turning and remove impeller (17) and
shims (18) from intermediate
housing (5). Record number and
thickness of shims.
(11)
Remove steel bar from coupling half (15).
(12)
Remove spring centering washer (19)
from impeller shaft (20).
(13)
Remove spring (21).
(14)
Remove shaft seal (22) and carbon seal (23).
(15)
Remove seal plate (24) from
intermediate housing (5).
(16)
Remove stationary seal (25) from seal
plate (24).
(17)
Remove preformed packing (26) from
stationary seal (25).
WARNING
Wear safety glasses while removing retaining
rings to protect eyes from possible injury or
blindness.
(18)
Remove retaining ring (27) from
intermediate housing (5).
(19)
Loosen setscrew (28) in coupling half (15).
(20)
Remove coupling half (15) and key (29)
from impeller shaft (20).
Change 3
22-19
