user manual

RCC130H-CRACK SAW OPERATION AND PARTS MANUAL REV #1 (11/18/04) PAGE 37
MAINTENANCE/SERVICE
CAUTION
Wear safety glasses and other appropriate safety
apparel when removing the snap ring or
performing any work with an arbor press.
Caution all onlookers about the possibility of
flying debris and personal injury.
14) Rotate the arbor shaft by hand to determine the
amount of bearing preloading created as a result of
the installation process.
Properly installed replacement bearings should
rotate without excessive friction, drag and/or "rough
spots". If these symptoms occur after assembly, the
bearings were improperly supported when pressed
into the bearing block. The resulting thrust placed
upon the bearing exceeded the static capacity.
Bearing operating with these characteristics will
deliver minimal service life and be prone to
premature failure.
15) Inspect the hub body drive key and hub body for
wear and/or damage. Replace any questionable
component with a factory replacement part only.
Reinstall the hub body drive key into the arbor shaft.
Reinstall the hub body to the arbor shaft until it fully
seats against the inside bore of the bearing.
Reinstall the two Allen screws into the hub body and
properly torque.
16) Inspect the arbor shaft drive key and arbor shaft
pulley for wear and/or damage. Replace any
questionable component with a factory replacement
part only. Reinstall the arbor shaft pulley drive key
into the arbor shaft. Reinstall the arbor shaft pulley.
Do not torque the Allen screws at this time. The
Allen screws will be tightened after determining that
the engine/electric motor and arbor shaft pulleys are
in proper alignment. See Step 19.
17) Reassemble the bearing block to the main
frame. Determine that the arbor shaft rotates
perpendicular to both the vertical and horizontal
planes as defined by the direction of machine travel.
18) Follow the instructions as outlined for
INSTALLING A REPLACEMENT V-BELT OR
PULLEY to complete the assembly of the pulleys, V-
belts and belt guard.
19) Reconnect the engine spark plug wire .
DANGER
UNEXPECTED MACHINE START UP CAN
RESULT IN PROPERTY DAMAGE AND/OR
PERSONAL INJURY.
LUBRICATION REQUIREMENTS.
Application: All Models.
Parts Required:
1 each, standard grease gun filled with one of the
following: ESSO Beacon 325, Shell Alvania #2,
Chevron SRI, or equivalent.
1 each, container of dry film lubricant.
1) Lubricate the rigid caster wheel bearing with a dry
film lubricant only. Dry film lubricants dry
immediately upon contact. Use sparingly. Excess
lubricant will attract the fine grained, powdered
materials described in this manual and directly affect
bearing service life.
CAUTION
Do not lubricate the rigid caster wheels with any
type of grease material. Grease will attract
foreign material accumulations that can
accelerate bearing wear.
2) The arbor shaft is supported by extra capacity,
ball bearings. These bearings are lubricated at the
time of manufacture and do not require additional
servicing when placing the unit in initial service or
during their normal service life. During the first few
hours of service, lubrication material may seep from
the bearings. This should not be a cause for
immediate concern.
3) The swivel wheel casters are sealed to minimize
the potential for dust contamination. Lubricate the
swivel caster wheels with the grease gun. Use
sparingly. Excess lubricant will attract the fine
grained, powered materials described in this manual
and directly affect bearing service life.
4) Do not apply belt dressing materials to the V-belts
for the purpose of minimizing slippage. These
products typically attract foreign material
accumulations that can accelerate component wear.
Excessive V-belt slippage can be eliminated with
proper V-belt tension and alignment.