REV A 4-6 122832
ing information can be used to install and test the pump by
simulating a wheel motor load.
Bi-Directional Flow Test Kit Installation
Disconnect the system hoses at the wheel motor, or sys-
tem hoses from the pump and connect the Bi-Directional
Flow Test Kit. (Special care should be taken to prevent con-
tamination debris from entering pump or wheel motor sys-
tem ports).
NOTE: Using the Bi-Directional Flow Test Kit, determina-
tion of directional flow is not necessary. The flow meter may
be connected in either direction into the forward and reverse
high pressure system lines.
NOTE: The following adapter fittings will be required when
connecting the Bi-Directional Test Kit (Excel P/N 783886 or
Hydro-Gear P/N 70661):
PG/PL Series Pumps require two 771311 adapter fittings
PJ Series Pumps require two 771311 adapter fittings
CAUTION: Ensure all fittings and hoses are attached
securely. This test is being completed on the vehicle’s high
pressure system lines. Failure to perform this properly could
result in bodily injury.
A. Hydraulic reservoir
Figure 4-10
A. Hydraulic filter
Figure 4-11
Potential for serious injury! Never work under the
machine or attachment unless it is safely sup-
ported with jack stands. To prevent possible injury
to the servicing technician and/or bystanders,
ensure the vehicle is properly secured.
• Make certain machine is secure when it is
raised and placed on the jack stands.
• Use only certified jack stands. Use only
appropriate jack stands, with a minimum
weight rating of 2000 pounds (907 kg) to
block the unit up.
• Use in pairs only.
• Follow the instructions supplied with the
jack stands.
Do not attempt any adjustments with the engine run-
ning. Use extreme caution while working in or around
all vehicle linkage! High temperatures can be gener-
ated. Follow all safety procedures outlined in the
mower’s operator’s manual!
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