Hydraulic Pumps; To Replace Propel Pump - Tennant ATLV 4300 Service Manual

HYDRAULIC PUMPS

The propel pump is used to provide hydraulic flow
to the drive motors. The accessory pump is used
to provide flow to the vacuum fan and steering
circuit.

TO REPLACE PROPEL PUMP

FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, Set Parking Brake, turn off
machine, and remove key.
1. Open the hopper cover and tilt the hopper
back.
2. Open the top engine cover.
3. Remove the five pan screws holding the rear
engine cover to the machine. Remove the
cover.
4. Remove the grill from the left side fender
panel.
5. Disconnect the air intake tube from the collar
on the left side machine fender.
6. Remove the seven pan screws holding the
left fender to the machine. Pull the fender
out slightly and disconnect the turn signal.
Remove the fender from the machine.
NOTE: Observe hydraulic cleanliness
requirements when opening hydraulic lines.
7. Disconnect and plug the small hydraulic
hose leading to the back side of the
accessory pump. Leave the larger suction
line connected.
8. Remove the two cap screws holding the
accessory pump to the propel pump. Pull the
accessory pump straight back out of the
propel pump. Let the accessory pump drop
down out of the way for access to the propel
pump.
NOTE: Make sure to retain the O- -ring.
9. Locate the propel pump directional arm on
the back side of the propel pump. Remove
the two hex screws holding the pump arm to
the pump hub.
ATLV 4300 330495 (10- -98)
HYDRAULICS
5-7