Filter
Top Products
PAGE 28 — AR13D RIDE-ON TANDEM DRUM ROLLER — OPERATION & PARTS MANUAL — REV. #2 (09/15/11)
AR13D RIDE-ON ROLLER — MAINTENANCE
DO NOT open hydraulic lines or loosen hydraulic fittings
while engine is running! Hydraulic fluid under pressure can
penetrate the skin, blind, cause burns or create other
potentially dangerous hazards follow all safety instructions
as described throughout this manual.
Hydraulic Oil System
The hydraulic system consists of a two pump stack directly
coupled to the engine. A hydraulic valve block (manifold)is
provided for quick and easy testing and troubleshooting.
Hydraulic oil is filtered by a screen filter located in the tank filler
neck, a
40 micron suction filter
located in the tank, and a
10
micron return filter
, with cold oil bypass valve located in the
return circuit.
It is recommended that
ISO 46 type hydraulic oil
or equivalent
be used when adding or replacing the hydraulic oil is required.
DO NOT USE MULTI-VISCOSITY OIL. Cleanliness is a very
important part of proper hydraulic system operation. Hydraulic
oil is not only used to transfer power; it also lubricates and cools
the system components. Keeping the hydraulic system clean
can help reduce costly repairs.
The hydraulic oil level sight glass is located on the right rear of
the front drum, below the engine compartment. This level should
be checked daily. Oil must be below the top and above the bottom
of the sight glass. DO NOT OVERFILL! Care should be taken to
clean the filler cap before adding oil to the system. If hydraulic oil
has to be added, the machine should be inspected for leaks.
The
suction filter
(Figure 26) is located inside the hydraulic
tank. This filter is attached to the fitting connected to the hydraulic
pump suction hose.
The
return filter
(Figure 26) is located at the front of the engine
compartment. Replace both filters according to the Table 5.
Changing Hydraulic Oil and Filters
1. Park the roller on a clean flat work area and set the parking
brake.
2. Remove the
hydraulic oil drain plug
(Figure 26) and
drain the hydraulic oil. Dispose of the used oil in an
environmentally friendly manner. Replace the drain plug
and tighten.
3. Remove the return filter and
install a new filter
. Dispose of
the used filter in an environmentally friendly manner.
4. Disconnect the suction hose and remove the fitting from
the tank.
Replace
the suction filter. Dispose of the used
filter in an environmentally friendly manner. Replace the
fitting and reconnect the suction hose.
Freewheel Engagement Valve
This hydraulic system has a freewheel engagemet valve allowing
hydraulic oil to be bypassed.
Open
(turn allen wrench counter-
clockwise) this valve (Figure 27) to engage the freewheel
capability of the roller. When the valve is fully opened, ports A
and B are allowed to connect, bypassing the oil to and from the
drum drive motors.
Remember the freewheel engagement valve should only be
used in emergencies when the roller cannot be driven due to
engine or hydraulic system problems.
When towing of the roller has been completed, this valve
must
be
closed
(turn allen wrench fully clockwise) completely and
the lock nut set. Failure to close this valve completely will result
in low power, improper speed, and excessive hydraulic oil
temperature.
Figure 26. Hydraulic Filter Locations
CAUTION - HYDRAULIC SYSTEM HAZARD