cascade corporation 14J Series, Service Manual

Page: 17 / 58

6921413 14
TROUBLESHOOTING
3.5-3
Rotation Circuit Test with Load
1
Rotate a load requiring approximately 3/4 of the
attachment's maximum torque capacity:
14J – 40,000 in.-lbs. @ 2,300 psi
4,520 Nm @ 160 bar
18J – 63,000 in.-lbs. @ 2,300 psi
7,120 Nm @ 160 bar
Note gauge readings during rotation:
• If the higher gauge reading is substantially
less than
the truck pressure as measured at the carriage hose
terminal, the rotator motor gerotor/geroler set may
need repair. Refer to Section 4.5 or 4.6.
• If the higher gauge reading is close to truck
pressure as measured at the carriage hose terminal
and no rotation occurs, the rotator motor output
shaft or drive box may need repair. Continue
troubleshooting.
2
Remove the motor from the drive box assembly as
described in Section 4.5-1 or 4.6-1.
3
Reinstall the hoses to the motor fittings. Actuate the
ROTATE circuit.
• If the motor shows rotational output, the drive box
may require service. See Section 4.3 or 4.4.
• If the motor shows little or no rotational output, the
rotator motor requires service. See Section 4.5 or
4.6.