MD Helicopters CSP-900RMM-2, Техническое обслуживание и ремонт

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CSP − 900RMM − 2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 201
Original
09-00-00
TOWING
MAINTENANCE PRACTICES
1. Towing Requirements
The requirement to ground transport the MD
Explorer on prepared surfaces is met by means
of skid mounted ground handling wheels.
The ground handling wheel set (3) consists of
two each, dual wheel assemblies, which
support a fully equipped MD Explorer approxi­
mately three inches above the ground.
The ground handling wheel set (3) is used for
moving the MD Explorer by hand and for
towing. The wheels are manually lowered with
a detachable jack handle, and are held in the
down position by a mechanical lock. The
ground handling wheel set is equipped with a
tow bar attach fitting.
At regular intervals examine tire pressure and
repack wheel bearings (Ref. Section
32-40-00).
A. Helicopter Manual Moving
(Ref. Figure 201)
Special Tools
(Ref. CSP − SPM)
Item Nomenclature
T101 Ground Handling Wheel Set
NOTE:
The ground handling wheel set (T101)
attaches at four points, two inboard and two
outboard, on the skid assemblies.
(1). A handle assembly is strapped to the
skid tubes and extends out, to pull the
wheels to and from the helicopter.
(2). Position ground handling wheel set
(T101) (3) over skid tubes (1) and roll
ground handling wheel set (3) forward.
NOTE:
The wheel set can be installed in either
direction, depending on jack handle posi­
tion.
(3). Attach ground handling wheel set
(T101) (3) to attach points (2) on skid
tubes (1).
(4). Hold tail up while lowering ground
handling wheel set (T101) (3).
(5). Jack hydraulic ram, which forces
wheels down and skids up.
(6). When the jack is extended, a mechani­
cal safety latch automatically snaps
into position, to prevent the wheels
from going up in the event of loss of
hydraulic pressure.
Lead Lag Loads
(7). Excessive lead-lag load applied to the
main rotor blades during ground
handling can result in damage to the
damper assembly.
Airframe structure damage can
occur if stress panels are not in
place before moving helicopter.
(8). Ensure all stress panels are installed
(Ref. Section 06-00-00).
When ground handling helicop­
ter do not lift main rotor blades
to clear objects. The main rotor should be ro­
tated to clear objects.
(9). Ensure cyclic stick is centered and do
not exceed the maximum up limits for
the main rotor hub flexbeam during
ground handling, maintenance and
pre-flight operations.
Do not move the rotor blade tip
up more than
4.0 ft. (1.22 m)
when the rotor is not in operation. And do
not move the flexbeam up more than
1.0 in.
(2.54 cm) at the blade attach point. Dam­
age to the flexbeam can occur.
(10). Manually move helicopter on ground
handling wheel set (3) by balancing
tailboom and pushing on rear fuselage
portion of airframe.
CAUTION
CAUTION
CAUTION
CAUTION