Operation Under Cold Weather Conditions; Preparation For Operation In Cold Weather; Procedure After Done Work - Kubota U17-3 Tier4 Operator's Manual

OPERATION UNDER COLD WEATHER CONDITIONS

PREPARATION FOR OPERATION IN
COLD WEATHER
1. Replace engine oil and hydraulic oil with
those of viscosities suitable for cold
weather.
2. In cold weather, battery power drops, and
the battery fl uid may freeze if the battery
is not suffi ciently charged. To prevent
the battery fl uid from freezing, be sure
to keep the battery charged at least 75%
or more of its capacity after operation.
To ease next starting, it is recommended
to keep the battery stored in closed or
heated rooms. If the battery fl uid level is
too low, do not add after operation, but
add with the engine running before the
next operation.
3. Add anti-freeze
radiator and reserve tank, if the ambient
temperature is expected to drop below
0ºC. Mixing ratio of water and anti-
freeze depends on the expected ambient
temperature.
Mixing ratio between water and anti-
freeze
Ambient
–5 –10
Temperature
°C
Antifreeze % 30 30
Water % 70 70
IMPORTANT:
Use permanent anti-freeze or longlife
coolant.
Drain the coolant completely and clean
inside of the radiator then fi ll with the
water and anti-freeze mixture.
The anti-freeze acts as an anti-corrosive,
it is not necessary to add an additive to
the water and anti-freeze mixture.
See "Coolant
CHECKS" in
radiator fi ll volumes.
to coolant in
–15 –20 –25 –30
30 35 40 45
70 65 60 55
check" under "DAILY
"MAINTENANCE"

PROCEDURE AFTER DONE WORK

Clean the excavator thoroughly after work
and wipe dry. Otherwise mud and earth on
the tracks could freeze if the temperature
drops below the 0ºC mark. Operation of the
excavator is then not possible. Store the
excavator in a dry place; if not possible, store
on wooden planks or on mats. If the excavator
is kept on damp or muddy ground, the tracks
could freeze overnight. Operation of the
excavator is then not possible. Furthermore
the reduction gear may be damaged.
Additionally, the piston rods of the hydraulic
cylinders must be rubbed dry. Otherwise
severe damage could occur if dirty water
seeps through the seals.
the
–35
50
50
for
75