PROBLEM 18
Travel system response is sluggish.
POSSIBLE CAUSES
The pump or motor is damaged, the travel speed out of adjustment.
CHECKS
Use a gauge to check charge pressure at travel pressure senders.
More than 21 bar (305 psi)
21 bar (305 psi) or Less
Manually stroke the travel pump with brakes applied.
(See Section 2 - Manually Stroking the Pump.) Is the system
pressure greater than 413 bar (6,000 psi)?
Set pump low-pressure source relief to 35 bar
(500 psi). Is the correct pressure obtained.
Yes
No
No
Yes
No
Yes
No
Adjust the multifunction valve for 413 bar (6,000 psi) system pressure. (See Section
2 - Setting Pump Pressure.) Retest with brakes applied. Is the pressure ok?
Adjust the travel speed per Section 2 - Shop Procedure. Is the correct speed obtained?
Travel system response
should be correct.
Check for leakage at motor. (See Section 2 -Testing
for Pump or Motor Leakage.)
Normal
High Leakage
High Leakage
Repair or replace the travel pump.
Check for leakage at pump. (See Section 2 -Testing
for Pump or Motor Leakage.)
Repair or replace the travel motor.
To Next Page
Loading...
