TSE DPT40-B, Owner'S Manual

Page: 89 / 472

Fuels, Lubricants, and Coolants
DX,COOL,TEST -19-13JUN13-1/1
RG,RG34710,7543 -19-09JAN07-1/1
Testing Coolant Freeze Point
The use of a handheld coolant refractometer is the
quickest, easiest, and most accurate method to determine
coolant freeze point. This method is more accurate than
a test strip or a float-type hydrometer which can produce
poor results.
A coolant refractometer is available through your
John Deere dealer under the SERVICEGARD™ tool
program. Part number 75240 provides an economical
solution to accurate freeze point determination in the field.
To use this tool:
1. Allow cooling system to cool to ambient temperatures.
2. Open radiator cap to expose coolant.
3. With the included dropper, collect a small coolant
sample.
4. Open the lid of the refractometer, place one drop of
coolant on the window and close the lid.
5. Look through the eyepiece and focus as necessary.
6. Record the listed freeze point for the type of coolant
(ethylene glycol coolant or propylene glycol) being
tested.
TS1732
—UN—04SEP13
SERVICEGARD™ Part Number 75240
TS1733
—UN—04SEP13
Image with a Drop of 50/50 Coolant Placed on the Refractometer Window
SERVICEGARD is a trademark of Deere & Company
Disposing of Coolant
Improperly disposing of engine coolant can threaten the
environment and ecology.
Use leakproof containers when draining fluids. Do not use
food or beverage containers that may mislead someone
into drinking from them.
Do not pour waste onto the ground, down a drain, or into
any water source.
Inquire on the proper way to recycle or dispose of waste
from your local environmental or recycling center, or from
your John Deere engine distributor or servicing dealer.
TS1
133
—UN—15APR13
Recycle Waste
10-12 032715
PN=42