Graco paint sprayer 3900 Manual

PDF Manuals
30 Pages English

Graco paint sprayer 3900
309414 9
Drive Housing
Removal
1.
Relieve pressure; page 4.
2. Fig. 3. Remove bearing housing. Do 1. through 8.
of Bearing Housing and Connecting Rod proce-
dure on page 8.
3. Fig. 3. Disconnect gallon counter sensor at (A).
Cut tie wrap holding gallon counting sensor
wire to clutch wire.
4. Fig. 3. Remove two screws (145) and lockwashers
(122).
5. Remove four screws (102) and lockwashers (122)
from pinion housing (183).
6. Lightly tap around drive housing (101) to loosen
drive housing. Pull drive housing straight off pinion
housing. Be prepared to support gear cluster (99),
which may also come out.
Installation
1. Liberally apply bearing grease (supplied with
replacement gear cluster) to gear cluster (99) and
to areas called out by note 3. Use full 0.62 pint
(0.29 liter) of grease for LineLazer III 3900 and
0.68 pint (0.32 liter) of grease for LineLazer III
5900.
2. Place bronze colored washer (101g) on shaft
protruding from large shaft of drive housing (101).
Place silver colored washer (101h) on pinion
housing. Align gears and push new drive housing
straight onto pinion housing and locating pins (B).
3. Install four screws (102) and lockwashers (122)
from pinion housing (183).
4. Install two screws (145) and lockwashers (122).
5. Fig. 2. Connect gallon counter sensor at (A).
Secure gallon counting sensor wire to clutch
wire with a tie wrap.
6. Fig. 3. Install bearing housing. Do 1. through 6. of
Bearing Housing and Connecting Rod proce-
dure on page 8.
TI0178A
Fig. 3
102
122
101h
101g
145
250
101
183
B
99
B
100
98
98
98
1
LineLazer III 3900 only
1
Torque to 125 in-lb -- LineLazer III 3900
2
2
Torque to 200 in-lb -- LineLazer III 5900
2
3
3
Apply remaining grease to these areas
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