Hayter Mowers Condor hydrostatic Drive 510D - Manual (Page 35)

1.35 1.35 MAINTENANCE
Every 200 Hours
P erform routine checks: Refer to DAILY
BEFORE USE, EVERY 50 HOURS USE.
Change transmission fluid: Hydrostatic Unit.
IMPORTANT: PREVENT DAMAGE - Dirt and
contamination are the enemies of any hydraulic
system. Ensure that the work area and the com-
ponents are thoroughly clean before during and
after refitting. Do not allow debris to become
entrained within the hydraulic system.
It is recommended that the following procedure is
adopted when carrying out an oil change.
- Remove the lower left hand cover and the rear
fan guard screen to gain access to the hydro
static unit.
- Disconnect the ball joint from the lower
actuating lever by removing the 5/16” UNF hex,
nut and spring washer.
- Slacken the main engine drive belt by loosening
the jockey pulley bracket.
- Remove the ¼” UNC Setscrew and retaining
washer and remove the fan.
- Remove the 4 mounting bolts and support the
hydrostatic unit.
- Remove the connecting pipe from the top of the
hydrostatic unit and allow the residual oil to
drain into a suitable can.
- Lift the unit and unhitch the drive belt.
- Lower the hydrostatic unit and remove from the
machine.
- Thoroughly clean dirt and debris from around
the hydrostatic unit.
- Remove the drain plug and allow the oil to
drain into a suitable can. Rotate the input shaft
to assist the draining procedure. Finally replace
the drain plug and tighten securely.
- Turn the unit the right way up and remove the
plastic cup (Note this has a left hand thread) and
the upper bleed plug.