Manitowoc 999 Service And Maintenance Manual

Reference Only
Manitowoc Published 05-16-17, Control # 233-03 3-1
999 SERVICE/MAINTENANCE MANUAL ELECTRIC SYSTEM
3
SECTION 3
ELECTRIC SYSTEM
INSPECT ELECTRICAL COMPONENTS
Every Month or 200 Hours
1. Visually inspect all electrical harnesses and cables
every month or at 200 hours of service life for the
following:
- Damaged, cut, or deteriorated harness loom
covering
- Damaged, cut, or abraded individual wires or cable
insulation
- Exposed bare copper conductors
- Kinked, crushed, flattened harnesses or cables
- Blistered, soft, degraded wires and cables
- Cracked, damaged, or badly corroded battery
terminal connections
- Inspect all machine ground connections for
damaged terminals or excessive corrosion
- Other signs of significant deterioration
If any of these conditions exist, evaluate the harness for
repair or replacement.
2. At the same service interval, visually inspect all
Controller Area Network (CAN) nodes and electrical
junction boxes for the following:
- Damaged or loose connectors
- Damaged or missing electrical clamps or tie straps
- Excessive corrosion or dirt on the junction boxes
- Loose junction box mounting hardware
If any of these conditions exist, address them
appropriately.
Degradation Due to Severe Environment
Table 3-1 Climate Zone Classification
Zone A and B
Replace harnesses and battery cables operating in climate
zone A and B after 8,000 hours of service life. Their
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.
Zone D and E
Inspect electrical harnesses and cable assemblies per
Step 1. Cold temperatures will negatively impact service life.
Salt Environment
Harness and cable assemblies operating in salt water
climates could see a significant reduction in service life.
Regularly inspect electrical harnesses and cable assemblies
per Step 1.
DANGER
Electric Shock Hazard
Ensure that the battery cables are disconnected from the
batteries before loosing any electrical connections.
Zone Description
A Tropical Moist: All months average above 66°F (18°C).
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

Manitowoc 999 Specifications

General

Brand	Manitowoc
Model	999
Category	Construction Equipment
Language	English