Main Component Assembly - Briggs & Stratton CE8070 Troubleshooting Manual

Portable Pressure Washer Familiarization and Troubleshooting Guide
Section 6 • Medium Frame Pump

Main Component Assembly

Before installing the pump onto the engine, place the engine
with its shaft in a vertical position and facing the installer.
Make sure the engine adapter has been properly installed to
the engine. Also check that the axial cam drive components
are installed properly. The pump may now be installed as
follows:
1. Install a new o-ring seal around the mounting flange of the
pump crankcase.
2. To aid reassembly, apply a dab of petroleum jelly to the
piston pivot shoes, in the area indicated by item 1 in
Figure 6.35.
Figure 6.35 — Piston Pivot Shoes
3. Place the piston pivot shoes onto the tips of the three
pistons. The grease should hold the shoes in place.
4. Insert two (2) M6-1.0 x 45mm hex head bolts through
mounting holes in the pump crankcase, 180° apart, and at
the locations shown in Figure 6.36. These are the two
long "jacking" screws.
Figure 6.36 — "Jacking" Bolt Locations
5. Lower the pump toward the engine adapter. Align the
crankcase and engine adapter mounting holes and also
position the three piston pivot shoes so that they engage
the axial cam bearing race properly.
6. When you are sure the pump crankcase and piston pivot
shoes are properly aligned and positioned, thread the two
long hex head bolts into the engine adapter mounting
holes.
7. Visually verify that the piston shoes remain properly
seated on the bearing race as you tighten the two screws
alternately.
8. When the two jacking bolts are tight, install four (4) M6-
1.0 socket head cap screws through the mounting holes
of the pump crankcase. Thread them into the mounting
holes of the engine adapter until they are snug.
9.Remove the two (2) "jacking" hex head bolts and replace
them with the two (2) remaining M6-1.0 socket head cap
screws.
10. When all six (6) socket head cap screws are snugged
down, tighten them to the torque value specified in the
Torque Chart, found on Figure 6.2 (Exploded View) at
the beginning of this chapter.
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