Hitachi ZW 310-6, Operator'S Manual

Page: 396 / 506

MAINTENANCE
7-82
Supplement Coolant Additive DCA4
The coolant contains the supplement coolant additive (SCA)
DCA4 chemistry. The DCA4 concentration level must be
maintained through routine maintenance.
To maintain the proper DCA4 level, change the coolant filter
using the specified filter WF2072 every 500 hours.
Refer to the following table for the filters and coolant
additive to be used.
Filter SCA
Type Type Quantity
Every 500 hours WF2072
Not
needed
-
When replacing
coolant
WF2072
DCA65L 1
DCA60L 1
When adding coolant or the coolant concentration is
adjusted, the DCA4 level maybe lowered.
Contact your nearest authorized dealer for the DCA4 level
check and adjustment.
Precautions for Using DCA4
d
WARNING: DCA4 includes alkali. Avoid splashing
DCA4 in your eyes or swallowing it. If DCA4 is splashed
into your eyes or swallowed, follow the instructions
shown below. Keep out of reach of children.

Exposure tolerances
Slight skin exposure to DCA4 will cause no serious
problems. However, longer or repeated exposure times,
inhaling, swallowing or splashing DCA4 in your eyes will
cause serious problems. Take the emergency measures
shown below.
Cause Symptoms Emergency Measure
Inhaling
The nose
smarts.
Breathe fresh air.
Long or
repeated
exposure
The skin
smarts.
Wash with fresh water. Take off
clothes contaminated with DCA4
and clean them thoroughly.
Splashing
in eyes
The eyes
smart.
Wash immediately with fresh water
for 15 minutes and see a physician.
Swallowing
Drink a lot of carbonated beverages
and see a physician.

Disposal
Be careful not to spill DCA4 on machine or ground. If
DCA4 is spilt, wipe it up and clean contaminated surface
thoroughly.
Use a container to collect spilt DCA4 and consign it to
professional disposers. Disposal of surplus DCA4 when
changing coolant should also be assigned to professional
disposers.