We carry the full line of Hydro-GearŪ replacement parts and
rebuild parts.
For factory warranty service on your Hydro-GearŪ transmission see your yellow
pages for
lawn and garden equipment parts. Lawn and garden equipment repair, or small
engine repair listing. We look forward to helping you for your Hydro-GearŪ
transmission needs.
HYDRO-GEAR
BDP
The
Hydro Gear pump part number BDP-21L is driven by the engine, and the motor is
connected to the differential .It consists of variable volume, reversible
swashplate, and axial piston pump.
The
pump inlet is connected to the transmission housing, so the pump can make up for
any oil that is lost. The make up oil is taken from the transmission housing
through an oil filter screen. The motor speed is then controlled by the pump rpm
and the angle of the swash plate, 51048.
The
BDP-10A hydro gear pump turns in the same direction at all times. The pump motor
is capable of turning in both directions. Reversing pump swash plate angle,
which then in returns reverses the flow of oil being pumped to the motor,
reverses direction of motor rotation.
When
trouble shooting your Hydro Gear Pump BDP-10L checks all the most obvious places
first. For example lack of drive in one direction could be caused by: swash
plate being restricted in one direction or check valve not seating. Lack of
drive in both directions: drive belt slipping or breaking, oil level low, filter
screen plugged, valve stuck open or leaking, or broken control linkage.
To
overhaul your transmission, first remove your control arm. Unbolt oil reservoir
2003081 and then separate cover from housing. Remove check valves and pull out
oil seals. Lay housing over and pull out cylinder block, 70081, and your shaft
2003020,
will slide out.
Inspect
pistons and cylinder bores for any excessive damage. You can only service your
pump and motor cylinder as complete assemblies. Always check your cylinder
blocks for wear, scoring or scratches. Coat parts with oil during reassembly.
Make sure the pistons are returned to their original bores in cylinder blocks.
HYDRO-GEAR
BDU
The
Hydro Gear pump part number BDU-21L is driven by the engine, and the motor is
connected to the differential .It consists of variable volume, reversible
swashplate,51048, and axial piston pump.
The
BDU-10L hydro gear pump turns in the same direction at all times. The pump motor
is capable of turning in both directions. Reversing pump swash plate angle,
which then in returns reverses the flow of oil being pumped to the motor,
reverses direction of motor rotation.
The
motor speed is controlled by the pump rpm and the angle of the swash plate. The
pump inlet is connected to the transmission housing, so the pump can make up for
any oil that is lost. The make up oil is taken from the transmission housing
through an oil filter screen.
To
overhaul your transmission, first remove your control arm. Unbolt oil reservoir
and then separate cover from housing. Remove check valves and pull out oil
seals, 44761. Lay housing, 2513003 over and pull out cylinder block, and your
shaft 2003032, will slide out. Inspect pistons and cylinder bores for any
excessive damage. Always check your cylinder blocks for wear, scoring or
scratches
.
When trouble shooting your Hydro Gear Pump BDU-10S checks all the most obvious
places first. For example, lack of drive in both directions: drive belt slipping
or breaking, oil level low, filter screen plugged, valve stuck open or leaking,
or broken control linkage. lack of drive in one direction could be caused by:
swash plate being restricted in one direction or check valve not seating
.
The
control handle, 51680, has three positions, forward, reverse and neutral, which
all effect the swash plate position. The acceleration control
and valves protect circuits
from extra pressure. They also keep the unit from jerking.
Hydro-GearŪ transmission parts and Hydro-GearŪ transaxle parts,
Parts for lawn mower transmissions and lawnmower transaxles. Zero turn lawn
mower transmission parts and service parts.
