Service Manual
495B SE (S)
95
Last Updated - 9/28/2016
REMEDY
HYDRAULIC SYSTEM
PROBLEM
CAUSE
Pump or motor too noisy.
Low hydraulic oil supply or wrong
viscosity.
Air in hydraulic oil.
Fill hydraulic reservoir with proper
oil.
Check for foamy oil. Tighten
connections, replace o-rings or
lines.
Hydraulic oil overheats.
Replace filters and hydraulic oil.
Fill hydraulic reservoir to proper
level.
Inspect and clean cooler fins.
Adjust to specifications.
Replace oil with proper viscosity.
Reduce load.
No flow or pressure.
Hydraulic oil dirty or low supply.
Oil cooler dirty.
Relief valve improperly adjusted.
Incorrect hydraulic oil viscosity.
Excessive load.
Pump not receiving hydraulic oil.
Damaged line.
Any or all of the following:
- Replace dirty filters.
- Clogged inlet line.
- Clean reservoir breather
vent.
- Fill reservoir to proper level.
Replace line.
Hydraulic system pressure too
low.
External leak in system.
Tighten connections and bleed air
from system.
Hydraulic pressure erratic.
Air in hydraulic oil.
Contamination in hydraulic oil.
Tighten connections, fill reservoir
to proper level, and bleed air from
system.
Replace dirty filter and system
hydraulic oil.
Slow hydraulic functions.
Hydraulic oil viscosity too high.
Low hydraulic oil supply.
Obstruction in line or line
damaged.
Hydraulic oil may be too cold or
should be replaced with proper
viscosity.
Fill hydraulic reservoir with proper
hydraulic oil.
Inspect lines. Replace parts if
necessary.
Summary of Contents for 495B - SE
Page 3: ...Introduction...
Page 15: ...Maintenance...
Page 18: ...Service Manual Last Updated 9 28 2016 495B SE S 18 SERVICE SCHEDULE...
Page 19: ...Service Manual 495B SE S 19 Last Updated 9 28 2016 SERVICE SCHEDULE CONTINUED...
Page 20: ...Service Manual Last Updated 9 28 2016 495B SE S 20 SERVICE SCHEDULE CONTINUED...
Page 21: ...Service Manual 495B SE S 21 Last Updated 9 28 2016 SERVICE SCHEDULE CONTINUED...
Page 22: ...Service Manual Last Updated 9 28 2016 495B SE S 22 SERVICE SCHEDULE CONTINUED...
Page 28: ...Hydraulic...
Page 29: ...Service Manual 495B SE S 29 Last Updated 9 28 2016 HYDRAULIC DRAWING 603 01594...
Page 30: ...Service Manual Last Updated 9 28 2016 495B SE S 30 HYDRAULIC SERVO DRAWING 603 01593...
Page 31: ...Service Manual 495B SE S 31 Last Updated 9 28 2016 HYDRAULIC SCHEMATIC 607 00185...
Page 32: ...Service Manual Last Updated 9 28 2016 495B SE S 32 HYDRAULIC DRAWING TANDEM 603 01574...
Page 33: ...Service Manual 495B SE S 33 Last Updated 9 28 2016 HYDRAULIC SERVO TANDEM 603 01573...
Page 34: ...Service Manual Last Updated 9 28 2016 495B SE S 34 HYDRAULIC SCHEMATIC TANDEM 607 00184...
Page 56: ...Electrical...
Page 71: ...Service Manual 495B SE S 71 Last Updated 9 28 2016 AIR CONDITIONER MAINTENANCE CONTINUED...
Page 72: ...Service Manual Last Updated 9 28 2016 495B SE S 72 AIR CONDITIONER MAINTENANCE CONTINUED...
Page 73: ...Service Manual 495B SE S 73 Last Updated 9 28 2016 AIR CONDITIONER MAINTENANCE CONTINUED...
Page 74: ...Service Manual Last Updated 9 28 2016 495B SE S 74 AIR CONDITIONER MAINTENANCE CONTINUED...
Page 78: ...Maintenance...
Page 88: ...Structural...
Page 93: ...Trouble Shooting...