TM 10-4610-246-13
5.7
MAINTENANCE OF UPPER AND LOWER MAIN CASE ASSEMBLY
This task covers:
a.
Disassembly
c.
Repair
b.
Inspect
d.
Assembly
INITIAL SETUP
Tools
Equipment Conditions
Tool Kit, General Mechanics
Ratio-feeder assembly removed (para. 4.20).
(Item 1, App. B)
Parts/Materials
Gasket (TM 10-4610-246-23P)
Gasket (TM 10-4610-246-23P
Preformed Packing
(TM 10-4610-246-23P)
Grease (Item 6, App. E)
Main Case Kit (TM 10-4610-246-23P)
Arm Retainer/Ball Pivot Kit
(TM 10-4610-246-23P)
a. Disassembly.
(1) Remove cover plate, R-valve, and P- valve.
(a) Remove five hex screws (1, Figure 5-4)
and lift cover plate (2) from upper main
case assembly (13).
(b) Remove gasket (3).
(c) Remove
retaining
washer
(4)
by
compressing
spring
(5)
and
sliding
retaining washer out of groove in arm
retainer (8).
(d) Unscrew arm retainer (8) from upper main
case assembly (13) and remove spring
(5), ball pivot (6), and arm (7).
(e) Unscrew R-valve (9) from upper main
case assembly (13).
5-9
Figure 5-4. Cover Plate, R-Valve and P-Valve
