Maintenance
6. Locate and remove the vent plug on each
transmission
7. Unscrew the filter to remove and allow oil to
drain from drive system.
Repeat this procedure for both filters.
Installing the Hydraulic System
Filters
G008748
3/4
1
2
3
4
5
6
Figure 57
1. Apply a thin coat of oil on the surface of the
rubber seal of each filter.
2. Turn the filter clockwise until rubber seal contacts
the filter adapter then tighten the filter an
additional 3/4 to 1 full turn. Repeat for the other
filter
3. Install the filter guards over each filter as
previously removed. Use the three screws to
secure the filter guards.
4. Verify the vent plugs are removed before adding
the oil.
5. Slowly pour the specified oil through expansion
reservoir until oil comes out of
one
of the vent
plug holes. Stop and install that vent plug. Torque
the plug to 180 in-lb (20.3 N-m).
6. Continue to add oil through the expansion
reservoir until oil comes out of the remaining
vent plug hole on the second transmission. Stop
and install that vent plug. Torque the plug to 180
in-lb (20.3 N-m).
7. Continue to add oil through the expansion
reservoir until it reaches the FULL COLD line on
the expansion reservoir.
8. Install the transaxle guard.
9. Proceed to the
Bleeding the Hydraulic System
section.
Important:
Failure to perform the
Bleeding
the Hydraulic System
procedure after
changing hydraulic filters and oil can result
in irreparable damage to the transaxle drive
system.
Bleeding the Hydraulic System
1. Enter the operator's position. Start engine and
move throttle control ahead to 1/2 throttle
position. Disengage parking brake.
A. Move the bypass levers into the pushing
the machine position; refer to
Pushing the
Machine by Hand
section in Operation.
With the bypass valves open and the engine
running, slowly move the traction-control
pedal in both forward and reverse (5 or 6
times).
B. Move the bypass levers into the operating
the machine position. With the bypass valve
closed and the engine running, slowly move
the traction-control pedal in both forward and
reverse directions (5 to 6 times).
C. Stop the engine and check the oil level in the
expansion reservoir. Add the specified oil
as until it reaches the Full Cold line on the
expansion reservoir.
2. Repeat step 1 until all the air is completely purged
from the system.
When the transaxle operates at normal noise
levels and moves smoothly forward and reverse at
normal speeds, then the transaxle is considered
purged.
3. Check the oil level in the expansion reservoir one
last time. Add the specified oil until it reaches
54
Summary of Contents for QSS708GEM42200
Page 1: ...QUEST FRONT STEER For Serial Nos 315 000 000 Higher Part No 4502 392 Rev B ...
Page 68: ...Schematics Schematics Electrical Diagram 68 ...
Page 69: ...Schematics Electrical Logic Schematic 69 ...
Page 71: ...Notes 71 ...
Page 72: ...Notes 72 ...
Page 73: ...Service Record Date Description of Work Done Service Done By 73 ...
Page 74: ...74 ...