Hitachi ZAXIS 450LC-3 Operator's Manual page 299

Greasing
IMPORTANT: When grease is sufficiently supplied in a
closed section, the motor speed becomes
slow. Release switch (1) to end greasing. If
grease is kept supplied further, seizure of
the motor may result.
1. Pull switch (1) to drive the motor. Grease will be delivered
from nozzle (3).
f
NOTE: When using the grease gun first time, it takes time for
air to be bled before grease is delivered.
2. After cleaning the grease fitting to be greased and the tip
of grease gun nozzle (3), install the tip of nozzle (3) onto
the grease fitting.
3. Pull switch (1) to supply grease. When grease is normally
supplied, old grease will be pushed out of the clearances
around the grease fitting.
4. After greasing is complete, bleed the pressure
remaining in the grease gun by tilting nozzle (3) before
disconnecting nozzle (3) from the grease fitting. A small
amount of grease will spout at this moment.
f
NOTE: If the motor speed becomes extremely slow or stops,
immediately release switch (1).
Since the grease gun operates at high speed, a
small amount of grease may leak from the plunger.
However, this is not a failure.
MAINTENANCE
3
7-29
1
M16J-07-044
3
Grease Fitting
M16J-07-045
3
Grease Fitting
M16J-07-046