10
PH3300i SM, Rev. 2017-01-20
2.3 Servicing Rules
1. Use genuine POWERHOUSE® or POWERHOUSE® recommended parts and lubricants or their
equivalents. Parts that do not meet POWERHOUSE® design specifications may damage the
engine.
2. Always install new gaskets, O-rings, etc. when reassembling.
3. When tightening bolts or nuts, begin with larger-diameter or inner bolts first and tighten to the
specified torque diagonally, unless a particular sequence is specified.
4. Clean parts in cleaning solvent upon disassembly. Lubricate any sliding surfaces before
reassembly.
5. After reassembly, check all parts for proper installation and operation.
6. Many screws used in this machine are self-tapping. Be aware that cross-threading or over
tightening these screws will strip the threads and damage the hole.
7. Use only metric tools when servicing this engine. Metric bolts, nuts and screws are not
interchangeable with non-metric fasteners. The use of incorrect tools and fasteners will damage
the engine.
2.4 Electrical Precautions
1. Hold the connector body to disconnect the connector. Do not disconnect by pulling the wire
harness. To disconnect the locking connector, be sure to unlock first, and then disconnect.
2. Check the connector terminals for bent pins, excessive stretching, missing terminals or other
abnormalities before connecting the connector.
3. To connect, insert the connector completely into the receptacle. If the connector is a locking type,
be sure that it is locked securely.
4. Check the connector cover for cracks or other damage and make sure the connector female
terminal fits snugly into the connector. Then, connect the connector securely. Check the
connector terminal for rust. Remove any rust using a fine emery paper or equivalent material
before connecting the connector.
5. Secure the harness clips in the specified locations on the frame and clamp the wire harnesses.
6. Clamp the wire harnesses securely so that they do not interfere with rotating parts, moving parts
or hot parts.
7. Route and connect the wire harnesses as shown in the Service Manual. Be sure that the
harnesses are not loose, twisted or pulled tight.
8. Route the wire harnesses properly so that they do not come in contact with sharp edges or
corners or the ends of any bolts or screws.
9. If a wire harness contacts the ends of any bolts or screws or sharp edges or corners, protect that
part of the harness by wrapping insulating tape on the sharp surface. If the wire harness has a
grommet, install the grommet securely.
10. Take care not to pinch the wire harnesses during installation of a part. If a wire harness has
damaged insulation, repair by winding with the electricia
n’s insulating tape.
11.
Before using test equipment, carefully read the manufacturer’s instructions and follow the
instructions in this Service Manual. Be sure that the test equipment battery is fully charged and
verify that the unit is operating correctly before you begin testing.