Owner's manual

Manual p/n: 029-0020-79-0 17
4DK Series Pumps
SECTION 4 TROUBLESHOOTING
Table 4-1 lists the Conditions, Possible
Causes and Suggested Corrective Action
measures. Before calling Hale Products or a
Hale authorized parts service center for
assistance, eliminate problem causes using
the following table.
If you cannot correct a problem, please have the
Model and Serial numbers ready prior to calling the
Hale Customer Service Technician Department for
assistance – Customer Service telephone number:
610-825-6300.
SUGGESTED CORRECTIVE ACTIONCONDITION POSSIBLE
CAUSE
PUMP WILL
NOT
ENGAGE
Automatic trans-
mission with
power shift system
Insufficient air in
shift system
Air leaks in shift
system
● Repeat recommended shift procedures with transmission in
NEUTRAL position. (See ‘Operating Procedures’ on page 11.)
● Release brake system momentarily. Then reset and repeat
recommended shifting procedures. (See ‘Operating Proce-
dures’ on page 11.)
● Release brake system momentarily. Then reset and repeat
recommended shifting procedures. (See ‘Operating Proce-
dures’ on page 11.)
● Check for leaks in system. Employ manual override proce-
dures if necessary. See Emergency Pump Shift Procedures,
beginning on page 13.
● Attempt to locate and repair leak(s). Leakage, if external, may
be detected audibly. Leakage could be internal and not as
easily detected.
CAUTION !
SOME VEHICLES MAINTAIN AIR ON THE SHIFT CYLINDER CONTINUOUSLY REGARDLESS OF
TRANSMISSION SETTING, AND SOME ONLY HAVE AIR APPLIED WHEN THE VEHICLE TRANSMIS-
SION IS IN NEUTRAL. USE CAUTION IN SERVICING. DO NOT LEAVE THE CAB AFTER SHIFTING
THE PUMP UNLESS THE SHIFT INDICATOR LIGHT IS ON, OR A SPEEDOMETER READING IS NOTED.
PUMP LOSES
PRIME OR WILL
NOT PRIME
Chart continued on
next page
Suction lifts too high
Blocked suction
strainer
Suction
connections
Air trapped in
suction line
● DO NOT attempt lifts exceeding 22' (6.7m) except at low
elevation.
● Remove obstruction from suction hose strainer.
● Clean and tighten all suction connections. Check suction
hose and hose gaskets for possible defects. Repair and/or
replace.
● Avoid placing any part of the suction hose higher than the
suction intake. Suction hose should be laid with continuous
decline to fluid supply.