41
HYDRAULIC SYSTEMS (CONT’D)
If you are struck by escaping
hydraulic fluid
under pressure
, serious injury can occur if
proper medical treatment is not administered
immediately.
During operation, hydraulic fluid and air in an
unvented hydraulic tank
becomes heated
and will tend to expand. This will raise the
pressure inside an unvented hydraulic tank. If
the filler cap is removed rapidly, the pressure in
the tank can force the oil out of the tank very
rapidly.
The hydraulic fluid may be very
hot and may cause severe burns.
Always
relieve tank pressure before removing the cap
completely. Consult the manufacturer’s
instructions for the correct procedure.
When adding fluid to any system, be sure to
use the fluid recommended by the manufacturer.
Certain fluids, when mixed, may destroy seals,
causing loss of control and possible personal
injury.
Keep hydraulic relief valve settings
set to
the manufacturer’s recommendations.
Excessive
pressures
could result in structural or
hydraulic failures. Low pressure could result in
loss of control. Either condition could cause
personal injury or death
.
Be sure the engine is stopped
and machine is
properly locked out and controls tagged, before
working on a machine. Only run engine when it is
essential, as in the case of pressure adjustments,
lubrication or tests. Follow the manufacturer’s
recommendations when making adjustments.
Never resume operation until satisfactory adjust-
ments have been made.
The operator must
follow the mechanic’s instructions when adjust-
ments are being made or machine is being serv-
iced.
PERFORM MAINTENANCE SAFELY
42
TIRE INSPECTION
Recommended air pressure
must be maintained
in every tire. Daily checks assure that inflation is
correct. If your periodic check discloses a tire that
is continuously losing air, a leak is indicated and
must be repaired. (FIG. 47)
During your pressure checks, also inspect for:
•
Objects wedged between or embedded in tires.
•
Missing valve caps and wheel lugs.
•
Cuts, tears and breaks that may need repair.
•
Abnormal or uneven wear.
•
Damaged or poor fitting rim or rim flanges.
•
Projecting body hardware, loose fender bolts,
spring clips – anything that could contact a tire.
Do not burn or weld on wheels or rims.
PERFORM MAINTENANCE SAFELY
FIG. 47
Summary of Contents for RD 27-100
Page 1: ...Operator s Manual Roller RD 27 100 RD 27 120 0171754en 003 1109 0 1 7 1 7 5 4 E N...
Page 8: ...Table of Contents RD 27 8 wc_bo0171754en_003TOC fm...
Page 49: ...RD 27 Operation wc_tx000814gb fm 49 Notes...
Page 56: ...Maintenance RD 27 56 wc_tx000815gb fm Seat assembly diagram wc_gr007044...
Page 58: ...Maintenance RD 27 58 wc_tx000815gb fm Seat switch diagram wc_gr007045...
Page 100: ...Schematics RD 27 100 wc_tx000863gb fm 6 Schematics 6 1 Electrical Schematic...
Page 101: ...Schematics RD 27 wc_tx000863gb_1 fm Electrical Schematic Page 1 of 3 101...
Page 102: ...wc_tx000863gb_1 fm RD 27 Schematics Electrical Schematic Page 2 of 3 102...
Page 103: ...Schematics RD 27 wc_tx000863gb_1 fm Electrical Schematic Page 3 of 3 103...
Page 104: ...Schematics RD 27 104 wc_tx000863gb fm Notes...
Page 105: ...RD 27 Schematics wc_tx000863gb fm 105 Notes...
Page 106: ...Schematics RD 27 106 wc_tx000863gb fm 6 2 Hydraulic Schematic...
Page 109: ...RD 27 Schematics wc_tx000863gb fm 109 Notes...
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Page 142: ...FORM RC 0809 Printed in U S A...
