Graco EM 5000 Instructions-Parts List Manual page 23

Repairing the Pinion
WARNING
To reduce the risk of serious injury, including fluid
injection or splashing in the eyes or on the skin, or
injury from moving parts, always follow the Pres-
sure Relief Procedure Warning on page 6
before checking, adjusting, cleaning, or shutting of
the sprayer. Unplug the power supply cord!
NOTE: Refer to Fig 23 for Steps 1. to 5..
NOTE: A hydraulic press is required for disassembly
and reassembly if you purchase the pinion parts
individually. If you do not have such a press, use
Repair Kit No. 221–032, which includes the shaft
and bearings pre–assembled and lubricated.
If you are using Repair Kit 221–032, follow Steps 1. to 3.,
below.
Disassembly
1. Remove the small ring (19m) from the hub (19j) and
the large ring (19k) from the bearing recess of the
pinion housing (19a).
2. Push on the front of the shaft (19g) to force the bear-
ing and hub assembly out of the housing (19a).
Reassembly
1. Install the shaft assembly into the pinion housing,
pushing it to the shoulder of the housing (19a).
2. Install the rings (19k and 19m).
3. Skip ahead to Reassembly, page 30, Step 7., or
continue on page 25.
Pinion Housing
If you purchased parts separately, use the following in-
structions. Disassemble only as far as needed for the
parts being replaced.
Disassembly
NOTE: The old bearings (19h and 19f) will be damaged
1. Remove the small ring (19m) from the hub (19j).
2. Remove the snap ring (19k) from the bearing recess
3. Push on the front of the shaft (19g) to force the bear-
4. Using a hydraulic press, place pieces of steel bar
Reassembly
1. Apply lubricant to the parts as shown in Fig 23.
2. Press fit the following parts:
3. Install the shaft assembly, pushing it to the shoulder
4. Install the snap ring (19k). Install the small ring
5. Skip ahead to Reassembly, page 30, Step 7., or
when removed. Have extra ones on hand if you
need to remove them for any reason.
of the pinion housing (19a).
ing and hub assembly out of the housing.
stock on the inner race of the large bearing (19h) and
press the shaft through the hub and bearing. See Fig
24. Then turn the shaft over and press out the small
bearing (19j).
Large bearing (19h) to the large shoulder of the
shaft (19g).
Small bearing (19f) to the shoulder of the shaft
(19g).
Hub (19j) onto the shaft (19g) all the way to the
large bearing (19h).
of the recess in the housing (19a).
(19m).
continue on page 25.