Tires; Lubrication; Fasteners - Gravely Promaster PM 250Z Operator's Manual

5
3
4
1. Hydro Belt
2. Spring
3. Idler
4. Engine Sheave
1
50" and 60" Belt Layout
1. Long Mower Belt
2. Short Mower Belt
3. Springs
4. Idlers
5. Mower Clutch Sheave
Figure 10

TIRES

Before each use make a visual check of tires. The correct
air pressure is 12-15 psi (83-103 kN/m 2 ) for the rear tires
and 20-25 psi (138-172 kN/m 2 ) for the front tires.
20
1
5. Right Hand Hydrostat
6. Left Hand Hydrostat
Figure 9
3
4
5

LUBRICATION

IMPORTANT: Wipe each fitting clean before and after
6
lubrication.
Steering system and Speed Selector components should
be lubricated every 50 hours of operation or every
2
3 months whichever comes first. (Figure 11)
Lube fitting locations are:
– each deck push arm (2)
– Hydro Idler (1)
– front axle pivot (1)
Apply Sten Mix Hi-Temp Grease or equivalent to the lube
fittings. Order P/N: 00036700 - ten pack of 14 oz.
cartridges.
When using Sten Mix Grease for the first time, all
components should be thoroughly cleaned prior to
lubricating.
Apply oil at all pivot points and pin connections.
OF1631
2
2
3
2
REF LUBRICATION
1 GREASE
2 GREASE
3 GREASE
4 GREASE

FASTENERS

OF1640
Each day before operating, check mower blade mounting
hardware and all other fasteners. Replace fasteners that
are missing or damaged. Tighten all nuts and bolts to
their correct torque value.
4
3
QTY DESCRIPTION-
LOCATION
2 CASTER PIVOT
1 AXLE PIVOT
2 PUSH ARM PIVOT
1 PUSH ARM PIVOT
OIL ALL PIVOT POINTS,
PIN CONNECTIONS
Figure 11
1
REF
INTERVAL
50 Hrs. 1
400 Hrs 2
50 Hrs 3
50 Hrs 4
50 Hrs
OF1791
1/00