Graco GM 3500 Instructions-Parts List Manual page 29

6. Be sure the face of the rotor (4b) and the field is free
of all oil and contaminants. Install the rotor, lock-
washers (11) and capscrews (16). Torque the cap-
screws to 7 ft–lb (9.5 N.m). See Fig 29–1.
Pull the engine recoil rope to assure the engine turns
freely, and there is no friction between the rotor (4b)
and the field (6). If there is friction, losen the
setscrews (12) and repostiion the field as necessary.
Tighten the setscrews oppositely and evenly to
25 in-lb (2.8 N.m). Also make sure there are no burrs
on the outside edge of the rotor.
NOTE: With the autogap style armature, the gap be-
tween the rotor and the armature is critical for
proper operation. The clutch kits with an autogap
style armature include a cardboard spacer (p/n
186–857) to set the proper gap. This spacer is for
use only during installation.
DETAIL B
HUB
CHAMFERED
END OF
HUB (19f)
ARMATURE (4a)
7 ft–lb (9.5 N.m)
19n,19k
Fig 29–1
REASSEMBLY
11
12
2
4b
TORQUE TO
11
16
4a
FACE MUST
BE CLEAN
19
VIEW FROM UNDER ENGINE MOUNTING
PLATE ON UPRIGHT CART
7. Clean the face of the armature (4a). With the flat side
of the armature facing the rotor (4b), slide the arma-
ture onto the hub in the drive/pinion assembly just un-
til the chamfered end of the hub (19f) protrudes
through the armature. See Detail B, Fig 29–1. There
will be significant resistance. Attach the cardboard
spacer, supplied with the clutch kit, to the face of the
armature. Engage the tabs on the spacer with the
slots in the armature.
Brace the cart against a wall to keep it from rolling.
Push the drive/pinion assembly onto the clutch
housing (2). There will be significant resistance.
When the mating surfaces of the drive/pinion assem-
bly and the clutch housing (2) are flush, remove the
drive/pinion assembly. Remove the cardboard
spacer.
8. Assemble the pinion housing (19) to the clutch
housing (2), using the capscrews (10) and lockwash-
ers (11). See Fig 29–1.
1
10
E
34
80
15
WHITE
TO ENGINE
BLACK
RED
VIEW FROM UNDER ENGINE MOUNTING
14
A
66
29
9
61 or
100
66
TO ENGINE
BLACK
WHITE
PLATE ON LO–BOY CART
RED