PROBLEM 20
Travel system response is sluggish.
POSSIBLE CAUSES
Pump or motor is worn; Travel speed out of adjustment.
CHECKS
Use a gauge to check charge pressure at travel diagnostic station. (See Tes t
17.)
300 psi or more
300 psi or less
Manually stroke travel pump with brakes applied.
(See Tes t
11.) Is system pressure greater than 6,000 psi?
Adjust charge pressure relief for 350 psi.
(See Tes t
19.) Is 350 psi obtained?
Yes
No
No
Yes
No
Yes
No
Adjust multifunction valve for 6,000 psi system pressure.
(See Tes t
18.) Retest with brakes applied. Is pressure ok?
Adjust travel speed per Shop Procedure SP6. Is correct speed obtained?
Travel system response
should be correct.
Check for leakage at motor. (See Tes t
8.)
Normal
High Leakage
High Leakage
Repair or replace travel pump.
Check for leakage at pump. (See Te st
8.)
Repair or replace travel motor.
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