
Petersen Industries, Inc.
TL Owner's Manual
If the operator experiences hydraulic failure while on route, first try to get the hydraulic
system working again. If you cannot get the hydraulic system working, we recommend
that you call for the assistance of an auxiliary service vehicle that can provide a power
source for the loader hydraulic system. The connections from the auxiliary power source
should be made at the appropriate loader valve bank. Hydraulic pressure from the
power source should go to the “in” at the loader valve bank, and return to the power
source should come from the “out” at the loader valve bank. Using the auxiliary power
source to run the hydraulics, replace all loader components to the travel position, and
then return the loader to the shop for repair.
Outrigger Cy inders:
Pilot Operated Check Valve: - The outrigger cylinders use pilot operated check valves
which are part of the cylinders. In the event of hose failure, these valves hold the load
until hydraulic pressure is applied, causing the valve to open.
These valves are factory preset and are not serviceable.
If you need to remove this valve, make sure the load is released from the cylinder prior
to removing the valve.
LOCK COLLAR
The lock collar is an integral part of the trash loader that holds the head and spindle
assembly in the pedestal. The lock collar must be in place and the lock collar bolts
properly tor ued prior to use of the trash loader. The lock collar must be tight against
the bottom of the spindle bearing housing with a maximum gap of one- uarter inch
(1/4").
Under normal operating conditions, there is very little load applied to the lock collar.
However, the following improper operating practices could put excess stress on the lock
collar and therefore must be avoided.
• Excessively packing the load with the boom. Evidence of this may be the bulkhead
of the body may be bowed outward.
• Forcing the dump body down with the boom. Evidence of this may be the bulkhead
of the body is dented down.
• Improper positioning of the boom prior to raising the dump body. Evidence of this
may be the underside of the main boom will be dented and scarred.
Improper lock collar installation and/or the improper operating practices listed above,
could result in the head assembly being pulled up out of the pedestal assembly. The