Service Manual

11
BDP-10A/16A/21L
BDP FLOW TEST KIT INSTRUCTIONS BLN-51334 FEBRUARY 2003
(This Instruction Sheet supersedes all previous flow testing instructions)
Description: BDP Flow Test Kit (Part Number 70661)
(Part Number 70661 Supersedes Part Numbers 70511 and BB-76810)
Purpose:
The design purpose of the BDP Flow Test Kit is to allow the dealer to isolate the BDP from the wheel
motor and determine if the BDP is faulty. The following information can be used to install and test the BDP by
simulating a wheel motor load.
Certain procedures require the vehicle engine
to be operated and the vehicle to be raised off of
the ground. To prevent possible injury to the
servicing technician and/or bystanders, insure
the vehicle is properly secured.
WARNING
Do not attempt any adjustments with the engine
running. Use extreme caution while working in
or around all vehicle linkage! High temperatures
can be generated. Follow all safety procedures
outlined in the vehicle owner’s manual!
WARNING
INSTALLATION AND TESTING PROCEDURES:
1. Disconnect the system hoses at the wheel motor, or system hoses from the BDP and connect the BDP Flow
Test Kit. (Special care should be taken to prevent contamination debris from entering pump or wheel motor
system ports).
Note: Using the Bi-Directional Flow Test Kit, determination of directional flow is not necessary. The flow meter
may be connected in either direction into the forward and reverse high pressure system lines.
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.
TESTING PROCEDURES:
1. Raise the drive tires off the ground. Block the remaining tires on the ground to prevent accidental vehicle
movement.
2. Open the restriction valve all the way.
3. Make certain all external BDP directional control stops are removed or backed off on the vehicle linkage to
obtain full pump directional control arm travel.
4. Start the engine and engage the drive pulley if necessary.
5. Bring the engine to maximum operating speed.
(This should not exceed 3600 rpm input speed on the BDP-10A/10L)
(This should not exceed 3400 rpm input speed on the BDP-16A)
(This should not exceed 2800 rpm input speed when testing the BDP-21L)
Engine speed adjustment may be necessary to obtain 2800 rpm.
CAUTION: Damage to the flow meter and/or re-calibration may result from testing the BDP-21L at
input speeds that exceed 2800 rpm.
6. With the directional control lever (on the vehicle) for the pump being tested, move the control arm in full
forward motion. (It may be necessary to lock the control arm into full forward position to prevent false
readings).
7. Operate without any load for approximately 30 seconds to 1 minute, this allows the system oil temperature to
rise.