Service And Adjustments; Hydraulic Fluid - Gravely Promaster 34Z Owner's/Operator's Manual

Gravely Dealers will provide any service which may be required to
keep your unit operating at peak efficiency. Should engine service
be required, it can be obtained from a Gravely Dealer or the
engine manufacturer's authorized service center.
WARNING: AVOID INJURY. Read and understand
entire Safety section before proceeding.
CAUTION: HOT SURFACES may result in injury. DO
NOT touch engine or drive parts which are hot from
operation. Allow parts to cool before servicing.
SERVICE POSITION
1. Place unit on a flat level surface. ALWAYS stop engine.
Ensure unit is secure and will not tip over. Strap and clamp
onto lift if used.
2. Place steering levers in neutral and engage parking brake.
3. Remove wing knob. Remove hex nut (992314).
4. Tip seat forward (Figure 6).
CAUTION: Be sure footing is secure to accomodate
weight shift of seat when rotating it into service position.
5. When service is complete, lower seat and secure with wing
knob or hex nut.
2 1
1. Service Position
2. Steering Levers
Figure 6

SERVICE AND ADJUSTMENTS

2
3
4
OF3363
3. Parking Brake
4. Battery

HYDRAULIC FLUID

WARNING: HYDRAULIC FLUID can result in severe
burns. Fluid in hydraulic system can penetrate skin and
result in serious injury or death.
Be sure to stop the engine before doing any work on
hydraulic parts.
Keep body and hands away from pin holes or nozzles
which expel hydraulic fluid when under pressure. Use
paper or cardboard, not hands, to search for leaks.
Ensure all hydraulic fluid connections are tight and all
hydraulic hoses and lines are in good condition before
applying pressure to system.
FOREIGN FLUID INJECTED INTO BODY can result in
gangrene. Fluid must be surgically removed within a
few hours by a doctor familiar with this form of injury.
Check Hydraulic Fluid Level
Operating
Range
1. Start the unit and run it to operating temperature (about 10
minutes).
2. Cycle the control levers forward and backward two or three
times.
3. For units equipped with a hydraulic deck lift, raise and
lower the deck completely two or three times.
4. Shut OFF engine. Engage parking brake. Remove the
ignition key.
5. Put seat in service position. See Service Position on
page 14.
6. Remove any dirt that may be around the cap/dipstick on the
hydraulic reservoir.
7. Remove cap/dipstick.
8. Check hydraulic oil level mark on cap/dipstick.
9. Add 15W50 synthetic oil as needed. Do not overfill.
Change Hydraulic Fluid and Filter
Change the hydraulic oil filter and hydraulic oil every 500 hours.
Use Mobil 15W50 synthetic oil for best component life.
1. Clean around dipstick cap and dipstick. Remove dipstick.
2. Place container under oil filter to catch oil.
3. Remove oil filter.
4. Allow tank to drain.
5. Lubricate rubber gasket on new oil filter with clean
hydraulic oil.
6. Spin new oil filter onto filter housing until it makes contact.
Tighten oil filter another 1/2 turn.
7. Add new oil to the oil tank. It will take about 2.5 quarts
(2.4 L). Use Mobil 15W50 synthetic oil for best pump and
wheel motor life.
8. Properly dispose of waste oil.
GB-14
FULL Mark
OE0380