Manitowoc Published 05-03-17, Control # 228-03 3-1
16000 SERVICE/MAINTENANCE MANUAL ELECTRIC SYSTEM
SECTION 3
ELECTRIC SYSTEM
ELECTRICAL DRAWINGS AND
SCHEMATICS
Applicable electrical system drawings and schematics are
attached at the end of this section.
INSPECT ELECTRICAL COMPONENTS
Every Month or 200 Hours
Complete the following inspections every month or 200
hours of use:
1. Visually inspect all the electrical harnesses and cables
for the following conditions:
- Damaged, cut, or deteriorated harness loom
covering
- Damaged, cut, or abraded individual wires or cable
insulation
- Exposed bare copper conductors
- Kinked, crushed, or flattened harnesses or cables
- Blistered, soft, or degraded wires or cables
- Cracked, damaged, or badly corroded battery
terminal connections
- Damaged or excessively corroded terminals
- Other signs of significant deterioration
If any of these conditions exist, evaluate the harness for
repair or replacement.
2. Visually inspect all Controller Area Network (CAN)
nodes and electrical junction boxes for the following
conditions:
- Damaged or loose connectors
- Damaged or missing electrical clamps or tie straps
- Excessively corroded or dirty junction boxes
- Loose junction box mounting hardware
If any of these conditions exist, address them
appropriately.
Degradation Due to Extreme Environment
See Table 3-1 for climate zone definition.
Zones A and B:
Replace harnesses and battery cables when operating in
climate zone A and B after 8,000 hours of service life. In
zones A and B, electrical service life is reduced by 25% to
40%.
Zone C:
Replace harnesses and battery cables operating in climate
zone C after 10,000 hours of service life.
Zones D and E:
Inspect electrical harnesses and cable assemblies when
operating in climate zone E per step 1 of the monthly
inspection. Cold temperatures reduce service life.
Salt Environment:
For harnesses and cable assemblies, operating in a salt
water environment could reduce service life. Regularly
inspect electrical harnesses and cable assemblies per step 1
of the monthly inspection.
Table 3-1 Climate Zone Classification
DANGER
Electrical Shock Hazard!
Ensure that the battery cables are disconnected from the
batteries before loosening any electrical connections.
Zone Description
A Tropical Moist: All months average above 18° C (64° F).
Latitude: 15° - 25° N & S
B Dry or Arid: Deficient precipitation most of the year.
Latitude: 20° - 35° N & S
C Moist Mid-Latitude: Temperate with mild winters.
Latitude: 30° - 50° N & S
D Moist Mid-Latitude: Cold winters.
Latitude 50° - 70° N & S
E Polar: Extremely cold winters and summers.
Latitude: 60° - 75° N & S