Maeda MC285C-3 - GENERAL MACHINE MAINTENANCE

Section 5 – GENERAL MACHINE MAINTENANCE Mini-Crawler Crane M A E D A
5-52 1/2019 MC285C-3
GENERAL MACHINE
MAINTENANCE
Batteries
Battery Precautions
WARNING! The following safety messages
address a potential Fire and Explosion
Hazard:
Fig. 5-94
• Batteries produce flammable hydrogen gas.
Do not smoke near a battery and never
expose the battery to fire or sources of high
heat.
Fig. 5-95
• Keep battery terminals tight at all times.
• Always remove the battery cables from the
battery when performing any battery service,
except when checking the battery electrolyte
level or measuring specific gravity.
WARNING! The following safety messages
address a potential Burn Hazard:
• Before handling or servicing a battery,
remove any metallic items such as watches,
bracelets or other jewelry.
• Never allow conductive objects such as
tools to contact the positive (+) terminal and
the machine body (ground).
WARNING! Exposure Hazard. Batteries
contain sulfuric acid. NEVER allow battery
fluid to come in contact with clothing, skin or
eyes. ALWAYS wear safety goggles and
protective clothing when handling or
servicing the battery. If contact with the skin
and/or eyes should occur, seek immediate
medical treatment and flush continuously with
water until medical treatment is obtained.
Fig. 5-96
NOTICE: Dispose of non-usable batteries
properly by taking to an authorised recycling
centre.
Cold Temperature Precautions
Battery charge capacity decreases when
temperature decreases.
Keep the battery charged at 100% and warm to
avoid starting problems.
Distilled water should be added as needed before
operation each day to avoid freezing.
WARNING! The following safety messages
address a potential Fire and Explosion
Hazard:
• Do not charge a battery with frozen fluid.
• Do not jump-start a frozen battery.
Before charging a frozen battery:
1. Remove the battery from the machine.
2. Place the battery in a warm environment and
slowly allow the battery fluid to thaw.
3. Once thawed, check for leaks and damage.
Replace the battery if damaged.
4. Measure the specific gravity of the battery
fluid and convert it into the charging rate
using the chart below.
Fluid Temperature [°C]
20
0
-10
-20
Charging
Rate (%)
100
1.28
1.29
1.30
1.31
90
1.26
1.27
1.28
1.29
80
1.24
1.25
1.26
1.27
70
1.23
1.24
1.25
1.26
5. Clean and add fluid as needed.
6. Charge the battery. See “Battery Charging”
on page 5-54.