Oils Used For Forklift Truck; Hydraulic Oil Gauge And Hydraulic Oil Fill; General Inspection Requirements; Fill Level Requirements - Yale A7S1 Service Manual

8000 YRM 2199

OILS USED FOR FORKLIFT TRUCK

Name
Gasoline
Engine Oil
Hydraulic Oil
Transmission Oil
Gear Oil
Brake Fluid
Grease (steer axle)
Grease (rest of truck)
HYDRAULIC OIL GAUGE AND
HYDRAULIC OIL FILL

General inspection requirements

1. Check the oil level of the hydraulic oil tank. Take
the oil level trace as a reference. The mast,
attachments, and steering system must be taken
in consideration in order to fill the hydraulic
system to the correct level.
2. Forklift must be parked for five minutes before oil
level can be checked.
3. The engine must be OFF, the forklift truck must
be on flat ground, the mast must be vertical state,
forks must be on the ground, and attachments
should be retracted. This ensures the hydraulic oil
is back in the tank.

Fill Level Requirements

NOTE: For items below, refer to Figure 74.
L line indicates the lowest level of hydraulic oil
•
required to operate the mast up to 4 m (13.1 ft)
in height (including the full free lift mast and
mast with special attachment).
M line indicates the lowest level of hydraulic oil
•
required to
ABOVE4 m (13.1 ft) in height (including the full
free lift mast and mast with special attachment).
Drive, Operation, and Routine Maintenance of Forklift Truck
operate the mast
Brand or Code (Domestic)
87 number gasoline.
API rating of SM or newer
Kinematic Viscosity 28.8-35.2 cSt @ 104F (40℃
mm2/s）
Kinematic Viscosity ≥5 cSt @ 212F (100℃ mm2/s)
Kinematic Viscosity 5-7 cSt @ 212F (100℃ mm2/s）
API GL-5 85W-90
DOT4 Synthetic Brake Fluid
NLGI grade 2 lithium type complex grease (with
minimum of 3% molybedenum disulphide additive)
NLGI grade 2 lithium based grease
H line indicates the maximum level of hydraulic
•
oil required. If the reading on the dipstick is
above this line, flush oil from the tank.
A. FILL LEVEL REQUIRED FOR MAST ABOVE
4 m (13.1 ft), WITH ATTACHMENTS.
B. FILL LEVEL REQUIRED FOR MAST BELOW
4 m (13.1 ft), WITH ATTACHMENTS.
Figure 74. Oil Fill Stick
83