Sakai TW504 - Measurement of Vibrator Circuit Pressure; Measurement

9-009
INSPECTION AND ADJUSTMENT
6. MEASUREMENT OF VIBRATOR CIRCUIT PRESSURE
6-1. Measurement
CAUTION
Take care not to operate the vibratory drum for a
longer period of time than necessary with the machine
stationary. Otherwise, the vibrator bearing could be
seized.
Oil temperature during measurement : 50
± 5°C (122 ± 9°F)
① 
Disconnect hose (1) from vibrator motor. Attach pressure
gauge through adapter
ⓟ
.
Adapter
ⓟ
: G1/2
Pressure gauge : 0 to 50 MPa (0 to 7,250 psi)
② 
Conrm that F-R lever is “N”.
③ 
Apply parking brake by pressing parking brake switch
button.
④
SW354 ROPS : Set vibratory drum select switch to “ ”.
⑤ 
Set vibration mode change switch to “ ”.
⑥ 
Start the engine and set throttle lever to “Full”.
⑦ 
Press F-R lever vibration switch ON.
⑧
Slowly move F-R lever to forward or reverse side.
⑨
Read pressure gauge for maximum value of vibrator
circuit pressure.
⑩
Turn F-R lever vibration switch OFF or move back F-R
lever to “N” as soon as measurement is nished.
Maximum circuit pressure (relief valve setting)
SW/TW354 : 12.7 MPa (1,842 psi)
TW504 : 14.0 MPa (2,030 psi)
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SW354-09009
1
p
PG002004