TROUBLESHOOTING
11-9
CONTROL LEVERS
Problem
Cause
Solution
Moves Hard
Corroded joint
See your authorized dealer.
Worn out pusher
See your authorized dealer.
Does Nothing
Worn out pusher
See your authorized dealer.
Pilot valve
See your authorized dealer.
Does Not Return to Neutral
Pilot valve
See your authorized dealer.
Too Much Play
Worn out pivot joint
See your authorized dealer.
Lever is Not Vertical In Neutral
Pilot valve
See your authorized dealer.
HYDRAULIC SYSTEM
Problem
Cause
Solution
Hydraulic Functions are Slow
Low oil level
Fill reservoir to full mark.
Cold oil
Push hydraulic warm up switch.
Wrong oil
Drain tank. Use correct oil.
Engine speed too low
Increase speed or see your authorized
dealer.
Pilot circuit
See your authorized dealer.
Worn pump
See your authorized dealer.
Restricted pump suction line
See your authorized dealer.
Hydraulic Oil Overheats
Wrong oil
Use correct oil.
Air leak in pump suction line
See your authorized dealer.
Oil lines restricted
See your authorized dealer.
Low oil level
Fill reservoir to full mark.
Plugged filters
Install new filters.
Worn pump
See your authorized dealer.
Plugged radiator or oil cooler
Clean and straighten fins.
Oil cooler bypass
See your authorized dealer.
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 ...