Maintenance Schedule - Gravely Promaster 34Z Owner's/Operator's Manual

FOR BEST PERFORMANCE
Cut grass when it is dry.
Keep mower blades sharp.
Keep mower deck properly levelled.
Adjust anti-scalp rollers to prevent scalping.
Do not set height of cut too low. For very tall grass, mow twice.
WARNING: AVOID INJURY. Read and understand
entire Safety section before proceeding.
Period Service
Check Safety Interlock
Check Parking Brake Interlock System
Each Use
Check Hydraulic Fluid
Check Tires
Follow Engine Manual Maintenance
Schedule
Check Mower Blades
Every 25
Hours
Lubricate Unit
Every 50
Hours
Check Brake Gap
Clean Battery
Check Fasteners
Every 100
Hours
Check Belts
Change Hydraulic Fluid and Filter
Every 500
Hours
Do not travel too fast.
Mow with the engine set at full throttle.
When mulching, only remove 1/3 of grass length per cutting.
Discharge clippings into areas already cut.
Vary cutting pattern with each mowing.
Do not allow grass or debris to collect inside of mower deck.
Clean after each use.

MAINTENANCE SCHEDULE

Proper maintenance can prolong the life of unit. The following
charts show the recommended service schedule. More frequent
service may be required due to working conditions (heavy loads,
high ambient temperatures, dusty conditions, or airborne debris).
See the maintenance instructions in the Engine Manual for
additional information.
Task
WARNING: Safety interlock system failure and improper operation
of unit can result in death or serious injury. Test this system each
time the unit is operated. If this system does not function as
described, do not operate until repairs are made. See Safety
Interlock System on page 10.
See Parking Brake Interlock System on page 10.
Check hydraulic oil level mark on cap/dipstick. Add 15W50 synthetic oil as
needed. Do not overfill. See Check Hydraulic Fluid Level on page 14.
See Specifications on page 23 for correct tire pressure.
Perform scheduled engine maintenance. Refer to engine manual for detailed
instructions.
Check mower blades for wear. Sharpen or replace as needed. See Mower
Blades on page 15.
Oil all pivot points and pin connections. Grease lube fittings. See Lubricate
Unit on page 16.
Adjust gap if nessessary. See Adjusting the Parking Brake on page 18
Keep battery and its terminals clean. See Clean Battery on page 16
Check mower blade mounting hardware and all other fasteners. Replace
missing or damaged fasteners. Tighten all nuts and bolts to their correct
torque value.
Replace worn or deteriorated belts. See Remove PTO Belt (992056, 314) on
page 19 and Replacing the Hydro Pump Belt on page 20.
Drain hydraulic fluid tank, replace hydraulic oil filter, refill system. See
Hydraulic Fluid on page 14.
GB-13
.