MAINTENANCE CD3340B/YB4411
5-36
Published 04/07/2015 Control # 569-00
Replace the Engine Coolant
1. Open and prop in place the engine compartment cover.
2. BE SURE THE ENGINE IS COOL and follow the cooling
system draining and filling procedures in the Engine
Operation and Maintenance Manual furnished with the
crane.
3. After the coolant is replaced, close the engine
compartment cover.
Inspect the Crane Structure and Booms for Damage
Thoroughly inspect the crane structure and booms for the
following:
1. Inspect for loose mounting hardware. Tighten any loose
hardware.
2. Inspect for cracked or broken welds. Do not operate the
crane if a critical weld is cracked or broken until the weld
is repaired.
3. Inspect for missing or unreadable warning decals.
Replace if necessary.
4. Inspect for excessive rust or corrosion on crane
structure and booms. Paint any areas with excessive
rust or corrosion.
5. Inspect for missing items. Replace if necessary.
6. Inspect the crane for any damage that might inhibit safe
operation of the crane. Repair any damage.
Testing the Rated Capacity Limiter (Optional)
See the Rated Capacity Limiter manual furnished with this
crane and test the indicator according to instructions in the
manual.
Miscellaneous Maintenance
Batteries/Charging System
NOTE: Lead-acid batteries produce flammable and
explosive gases. To avoid personal injury, when
checking, testing or charging batteries:
• DO NOT use smoking materials near batteries.
• Keep arcs, sparks and flames away from
batteries.
• Provide ventilation and wear safety glasses.
• Never check battery charge by placing a metal
object across the posts. The sparks could
explode battery gases and cause injury or
death. Use a voltmeter or hydrometer.
Checking the Charging System
Check the voltmeter reading on the instrument panel.
Normal voltmeter readings are as follows:
Normal Operating Ranges
Engine above idle - 14 to 16 volts
Engine stopped - 10 to 14 volts
A reading of less than 10 volts with the engine at low idle
indicates a low battery charge.
A reading of less than 14 volts with the engine speed above
low idle indicates a problem in the charging system. The
system should be checked out by an qualified service
technician.
When the voltmeter on the instrument panel indicates a low
battery charge, attach a battery charger and increase the
battery charge.
Charging the Battery
Under normal conditions, the engine’s alternator will have no
problem keeping a charge on the battery. The only condition
in which the battery may cause a problem is when it has
been completely discharged for a long period of time. Under
this condition the alternator may not be able to recharge the
battery and a battery charger will be required for charging the
battery.
Before using a battery charger, an attempt can be made to
recharge the battery using the engine alternator by first jump
starting the crane (See Jump Starting, in the Operation and
Maintenance Manual) and letting the engine run.
DO NOT charge a frozen battery; it may explode and cause
injury. Let the battery warm up before attaching a charger.
Charging rates between 3 to 50 amperes are satisfactory if
no excessive gassing or spewing of electrolyte occurs or the
battery does not feel excessively warm (over 52°C [125°F]).
If spewing or gasing occurs or temperatures exceed 52°C
(125°F), the charging rate must be reduced or temporarily
stopped to permit cooling.
Reference Only
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