• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
SWING DYNAMIC BRAKING TEST
PILOT PRESSURE REGULATING VALVE TEST AND ADJUSTMENT

Maintenance Manual For Hydraulic Excavator Model 230Lcr
Page Navigation
  506    507    508    509    510  511  512    513    514    515    516  
img
TM 5-3805-280-24-1
Tests
E Mode Switch--Specification
Position .................................................................................................. Off
HP Mode Switch--Specification
Position .................................................................................................. Off
Auto-Idle Switch--Specification
Position .................................................................................................. Off
6. Actuate the swing control lever to full stroke. Swing 90
(1/4 turn) and then release control lever.
Upperstructure must come to a stop within 45 (1/8
turn) after releasing control lever.
After 90 (1/4 turn) Swing, Upperstructure Must Stop After
Releasing Control Lever Within--Specification
Distance................................................................................. 45 (1/8 turn)
Repeat procedure in the opposite direction.
If upperstructure does not stop within 45 (1/8 turn), check
the following:
Swing motor leakage. (See procedure in this group.)
9025
Swing motor crossover relief valves. (See procedure
25
in this group.)
58
Inspect swing valve spool. (See procedure in Group
3360.)
NOTE: The swing park brake does not stop the
upperstructure. The engagement of swing park
brake is delayed several seconds because
hydraulic oil is released from the piston cavity
through an orifice to return.
CED,OUOE003,1075
1913AUG982/2
6-189


Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved.