Manitowoc MLC300 Service And Maintenance Manual

Reference Only
POWER TRAIN MLC300 SERVICE/MAINTENANCE MANUAL
7-2
Published 11-22-17, Control # 257-02
Loose Hold-Downs
Loose hold-downs allow the battery to vibrate in the holder.
This can cause cracks or wear in the container and cause
the acid to leak. Leaking acid corrodes terminals and cables,
causing high resistance at the battery connections, which
weakens the battery. Hold-downs can also distort or crack
the container.
Overloads
Avoid prolonged cranking or the addition of extra electric
devices. These can drain the battery and may cause
excessive heat.
Multiple Battery System
The crane’s 24 V system is powered by two 12 V batteries
connected in series (see Figure 7-1
).
Always refer to the wiring diagram for the correct
connections. Be careful not to reverse the battery
connections. Installing the batteries with electrical
connections that are reversed will damage not only the
batteries but also the crane’s electrical system, voltage
regulator, and/or alternator.
Battery Maintenance
Checking Battery State of Charge
Special equipment is required to properly determine the
condition of a battery that has been in service. However, a
voltmeter can be used to determine a battery’s state of
charge by checking the voltage between the battery
terminals (see Figure 7-2
and Table 7-2).
This open-circuit test is the simplest test, but not as accurate
in determining a battery’s condition as a hydrometer test.
The advantage is that the cell covers do not need to be
opened, eliminating the possibility of cell contamination and
electrolyte spillage.
NOTE: Do not use this test method if the battery has been
recently charged by a charger or alternator. Recent
charging places a high surface charge voltage on
the battery, which is not a true indication of actual
battery voltage.
FIGURE 7-1
Item Description
1 Hold-Down Screw with Nuts and Washers (qty 4)
2 Hold-Down Tubes
3Battery Cover
4 Hold-Down Knobs
5 Rubber Strip (qty 10)
6 Battery: 12V, 1,375 CCA, Size 8D (qty 2)
Located in Rotating Bed
on Right Side of Engine
CAUTION
Potential Electronic Control Module Malfunction!
Before disconnecting the batteries or opening the battery
disconnect, make sure that the engine ignition switch has
been off for five minutes. This will avoid engine fault
codes and undesirable operation.
WARNING
Personal Injury Hazard!
Each battery weighs about 59 kg (130 lb). Use proper
lifting procedures.

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English