Speed Or Power Of Work Equipment (Including Blade), Travel, And Swing Systems Is Low - Komatsu PC58UU-3 Shop Manual

TROUBLESHOOTING
H-1 Speed or power of two or more of work equipment (boom,
arm, bucket, and offset), travel, swing, and blade systems is
low
# Before carrying out troubleshooting, check that oil level in the tank is proper.
# If the engine speed lowers, carry out H-2 first.
# If [Individual factor] is indicated, a trouble which occurs less frequently than the detected trouble may
have occurred or several troubles may be combined. Accordingly, carry out troubleshooting for each of
those troubles.
# Select a combination of systems which have low speed or power from Table 1 before going to the next
troubleshooting.
# If the combination of the detected troubles is not in Table 1, carry out troubleshooting for the actuators
of each system [which has low speed or power] (H-6 ~ H-9).
Table 1
Work equipment
✕
✕
✕
!
!
✕
!
a) Speed or power of work equipment (including blade), travel, and swing systems is low
20-506
1
!: Normal
Travel Swing
✕ ✕
✕ ✕
✕
!
✕
!
✕
!
! !
✕ ✕
Is suction strainer clogged?
✕: Speed is slow or lacks power
Troubleshooting
Blade
✕
!
!
✕
✕
!
!
1
No
Yes
item
a Go to a
b Go to a
c Go to a
d Go to a
e Go to a
f Go to a
g Go to a
Cause
Go to related troubleshoot-
ing in H-6 ~ 9, 21, 28, and 36
Clogged of suction strainer
(Suction trouble of pump)
H-1
Remedy
—
Clean or replace
PC58UU-3