Trane LWHA, Установка, эксплуатация и обслуживание, Страница: 20 / 24

TRANE ®
17
Maintenance
Maintenance Contract
Training
It is strongly recommended that you
sign a maintenance contract with your
local Service Agency. This contract
provides regular maintenance of your
installation by a specialist in our
equipment.
Regular maintenance ensures that any
malfunction is detected and corrected
in good time and minimizes the
possibility that serious damage will
occur. Finally, regular maintenance
ensures the maximum operating life
of your equipment. We would remind
you that failure to respect these
installation and maintenance
instructions might result in immediate
cancellation of the warranty.
The equipment described in this
manual is the result of many years of
research and continuous
development.
To assist you in obtaining the best use
of it, and maintaining it in perfect
operating condition over a long period
of time, the constructor have at your
sisposal a refrigeration and air
conditioning service school. The
principal aim of this is to give operators
and maintenance technicians a better
knowledge of the equipment they are
using, or that is under their charge.
Emphasis is particularly given to the
importance of periodic checks on the
unit operating parameters as well as
on preventative maintenance, which
reduces the cost of owning the unit by
avoiding serious and costly
breakdown.
Fan Belt Maintenance
Clean fan belts and pulleys with a dry
cloth. Oil and grease must be kept off
belts. The use of a belt dressing is not
recommended. When replacing belts,
use a matched set. Do not force belts
onto pulleys, but adjust motor position
to allow mounting and then re-tighten.
Sheave (Pulley) Alignment
To prevent interference of the fan frame
with the belt, make sure that the belt
edge closest to the motor has the
proper clearance from the fan frame,
as shown in Figure 7.
Align the fan and motor sheaves by
using a straightedge as shown in
Figure 8. The straightedge must be
long enough to span the distance
between the outside edges of the
sheaves.
When the sheaves are aligned, the
straightedge will touch both sheaves
at points A throught D.
CAUTION
!
DO NOT OVER-TENSION THE
BELTS. EXCESSIVE TENSION WILL
REDUCE FAN AND MOTOR
BEARING LIFE,ACCELERATE BELT
WEAR AND POSSIBLY CAUSE
SHAFT FAILURE. CLEAN THE
SHEAVES AND BELT WITH A DRY
CLOTH. OIL AND GREASE SHOULD
BE KEPT AWAY FROM THE BELT
BECAUSE THEY CAN CAUSE
DETERIORATION AND SLIPPAGE.
THE USE OF BELT DRESSING IS
NOT RECOMMENDED