OPERATING THE MACHINE
5-8
WARMING-UP OPERATION
In cold weather, warm up the machine until coolant and
hydraulic oil temperature increases to the appropriate
operating temperature.
IMPORTANT: The appropriate hydraulic oil operating
temperature on this machine is 50 to 80°C.
Hydraulic components may be seriously
damaged if the machine is operated with
low temperature hydraulic oil.
In case warming up the machine
by relieving the hydraulic system,
continuously relieve the relief valve for 10
to 15 seconds while taking a pause for 5 to
10 seconds.
1. Run the engine with engine control dial (1) turned to the
slow idle position.
Do not operate the machine until the needle of coolant
temperature gauge (2) starts swinging.
2. After the needle of coolant temperature gauge (2) starts
swinging, turn engine control dial (1) to approx. midium
position.
3. Operate the boom, arm and bucket cylinders slowly to
each stroke end several times.
4. Operate the travel and swing functions slowly to allow
hydraulic oil to circulate through the systems.
5. Warming up operation ends after the above operation is
completed.
f
NOTE: During cold weather season, the warm-up operation
system automatically operates so that the engine
speed increases for a moment even though engine
control dial (1) is in the slow idle position.
M1U1-01-033
1
M1J1-05-001
Slow Idle
M1U1-03-006
2
Summary of Contents for ZAXIS 450LC-3
Page 1: ...Serial No 020001 and up Hydraulic Excavator PART NO EM1J3 NA1 2 450LC 3 650LC 3 850LC 3 ...
Page 2: ... ...
Page 4: ......
Page 45: ...SAFETY SIGNS S 33 SS 862 SS 863 SS 859 1 2 3 ...
Page 46: ...SAFETY SIGNS S 34 SS3106039 SS3092349 SS 408 4 5 6 ...
Page 48: ...SAFETY SIGNS S 36 SS 024 SS 710 SS3089713 10 11 12 ...
Page 136: ...OPERATOR S STATION 1 88 MEMO ...
Page 138: ...BREAK IN 2 MEMO ...
Page 150: ...OPERATING THE ENGINE 3 12 MEMO ...
Page 270: ...TRANSPORTING 6 78 MEMO ...
Page 406: ...MAINTENANCE 7 136 M1J1 07 083 33 Retighten air compressor mounting bolts ...
Page 408: ...MAINTENANCE 7 138 MEMO ...
Page 410: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 MEMO ...
Page 438: ...SPECIFICATIONS 12 14 MEMO ...
Page 470: ...OPTIONAL ATTACHMENTS AND DEVICES 13 32 MEMO ...
Page 474: ...INDEX 14 MEMO ...