TM 5-3810-206-35
(2) Remove water pump from front blower (para
3-14. Blower (supercharger) for Engine Model 687C-
18-ES
(3) Loosen the hose clamps (4, fig. 3-14) from
a. General. Two blowers are mounted on left side
boot (5).
of engine. Each furnishes air to three cylinders through
(4) Remove blower adapters (TM 5-3810-206-
adapters. The rear blower is coupled to and driven by
12).
the accessory drive. Rear blower is coupled to and
(5) Remove eight capscrews and lockwashers
drives front blower, which in turn drives the water pump.
that secure front blowers to engine (10, fig. 3-14). Slide
Both are disassembled and reassembled in a similar
front blower (1) to left approximately two inches,
manner. This paragraph will describe handling of front
uncouple it from rear blower (6), then remove front
blower, showing differences between blowers in
blower (1) and gasket (44, sheet 1 of fig. 3-15 1) from
applicable step(s).
the engine (10, fig. 3-14).
b. Removal and Installation.
(6) Remove boot (5, fig. 3-14) from shaft (46,
(1) Disconnect and remove external oil and
sheet 2 of 2 of fig. 3-15).
drain lines from front and rear blowers (TM 5-3810-206-
(7) Loosen hose clamp from boot over coupling
12).
at accessory drive.
KEY to fig. 3-14:
1
Front blower
6
Rear blower
11
Oil drain line
2
Nut (2 rqr)
7
Capscrew
12
Tube nut (2 rqr)
3
Oil line
8
Clamp
13
Hand hole cover (6 rqr)
4
Hose clamp (2 rqr)
9
Nut
14
Capscrew (6 rqr)
5
Boot blower coupling
10
Engine
15
Lockwasher (6 rqr)
Figure 3-14. Blowers, removal and installation.
3-16
