Axial Cam Drive Components (Tapered Engine Shaft) - Briggs & Stratton CE8070 Troubleshooting Manual

Portable Pressure Washer Familiarization and Troubleshooting Guide
Section 7 • Large Frame Pump
4. As the pump crankcase is
separated from the engine
adapter, three (3) piston pivot
shoes (shown in Figure 7.5)
will fall out. Retain the shoes
for later inspection and
installation.
Axial Cam Drive Components - (Tapered Engine
Shaft)
On units with tapered engine shafts, the engine shaft adapter
is retained to the engine shaft by means of an M16-1.50 Jam
Nut and a Belleville washer. To remove the axial cam drive
components from the engine shaft, proceed as follows,
referring to Figure 7.6:
Figure 7.6 - Axial Cam Drive Components (Units with
Tapered Engine Shaft)
Item Name
1 O-ring
2 Engine Adapter
3 Roller Thrust Bearing
4 Engine Shaft Adapter
5 Axial Cam
6 Bearing Assembly
7 Belleville washer
8 Jam nut
1. Remove the pump head, as described previously.
2. Remove the axial cam bearing assembly. Some models will
have a ball bearing, some a roller bearing. KEEP BEARING
RACES AND BEARINGS TOGETHER AS A SET.
Figure 7.5 - Pivot Shoe
3. Remove the engine adapter bearing assembly.
4. Remove the M16-1.50 Jam Nut and the Belleville washer.
5. Remove the axial cam.
6. Referring to Figure 7.7, use a special engine shaft adapter
puller tool to remove the engine shaft adapter:
Figure 7.7 - Puller Tool on Tapered Shaft
a. Attach the tool to the threaded portion of the engine
shaft adapter.
b. Turn the bolt on the tool firmly against the engine
tapered shaft, putting tension on the engine adapter.
Then strike the bolt head with a dead blow mallet.
c. Continue tightening the tool bolt against the engine
shaft and striking with the mallet until the engine shaft
adapter is completely free of the engine shaft. Remove
the engine shaft adapter.
7. Remove four (4) 5/16"-24 socket head or button head
cap screws that retain the engine adapter to the engine.
Remove the engine adapter. The large o-ring seal or
gasket found between the engine adapter flange and pump
crankcase flange can also be removed.
8. If necessary, remove the engine adapter sleeve from an
older-model engine adapter. New models have an integral
engine adapter pilot.
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