Graco GM3500 SPRAYER 231-078 Instructions And Parts List page 21

REPAIR
Pinion, Clutch, Clamp, Field and Engine
Disassembly of these parts can start from the pinion
housing, or from the clutch if no pinion service is needed.
If starting from the pinion housing, first follow Steps
1
to 6 of Drive Housing.on page 20, then continue below.
If starting from the clutch, see page 24.
Pinion Housing Removal
WARNING
To reduce the risk of serious bodily injury, including
fluid injection, splashing fluid in the eyes or on the
skin, or injury from moving parts. always follow the
Pressure Relief Procedure Warning on page 13
before repairing any part of the sprayer. Disconnect
the spark plug cable.
NOTE: Refer to Fig 21-1 for Steps 1 to 3, except where
1. Remove the
two
bottom screws (IO) and lock-
washers (1 1) first, and then remove the three screws
(IO)
and lockwashers (1 1) holding the pinion hous-
ing (19n) to the clutch housing (2).
2. Pull the pinion housing away from the clutch hous-
ing. The armature (4a) will come with it.
3. Pull the armature (4a)
off
the hub (19f
-
see Fig
23-1) of the pinion housing.
noted.
Do not lose the thrust ball (19j). Refer to the
CAUTION on page 20 for more information.
NOTE: To disassemble the pinion, go to page 22. To
disassemble more of the sprayer, go to page
24.
To
reassemble the sprayer from this point, skip
ahead to Reassembly, page 29, Step
7.
19j
Fig
21-1
307-893
21