Owners Manual • Rexnord
®
Planetgear
™
7000 Speed Reducers
(Page 13 of 33)
Size Mercury/Mars
158-110
10/21 (Supersedes 01/15)
© Rexnord Corporation. All Rights Reserved.
Section IV — Start-up
WARNING
: Never operate the speed reducer at speeds
and/or loads that exceed the limits specified on the
nameplate. Exceeding these limits may result in personal
injury or machinery damage. Check to insure that all
rotating equipment is properly guarded according to
OSHA standards.
CAUTION
: All speed reducers are shipped without oil but
may have been treated with a rust preventative oil. A vapor
phase inhibitor may also be added. Be sure to fill the unit
to the proper level prior to start-up.
WARNING
: These corrosion inhibitors are not H1
registered with the NSF (National Sanitation Foundation)
as suitable for food processing applications. When Food
Grade Lubricants are to be used it is the end users
responsibility to properly flush and prepare the drive for
Food Grade service. Contact the lubricant manufacturer for
specific information and flushing procedures.
CAUTION
: When starting up new equipment, proceed
cautiously.
4.1 PRE START-UP CHECKLIST
Has the reducer been filled with the proper oil type and
to the correct oil level?
Are all mounting bolts high strength ANSI 818.2.1
Grade 5 or ISO 898/1 Grade 8.8 and tightened
according to torque specifications in
Table 18
(Page
29)?
Are all input and output shaft couplings, sprockets,
pinions, etc. mounted with full engagement and keys in
place?
Have couplings and reducer seals been properly
greased?
Are coupling connections properly aligned and
fastened?
Have all pipe plugs (oil fill, oil level, and oil drain) been
inserted and properly tightened?
Have all electrical connections been made?
Does the motor shaft rotate in the proper direction?
Are all guards in place and properly secured?
4.2 INITIAL START-UP
It is recommended that all Planetgear 7000 speed
reducers be run-in for a period of time before introduction
to full service. This will allow the gearing to mate properly
prior to being exposed to any high load conditions. The
following procedure is recommended for initial start-up.
4.2.1 PRIME MOVER
The prime mover should be set up to maximize the amount
of time necessary to get to the rated speed. This will avoid
any instantaneous gear loads that could exceed the rating
of the speed reducer or other components.
4.2.2 REDUCER ROTATION
If the reducer is equipped with an internal backstop, an
arrow located on the top of the maincase will indicate the
direction of rotation during operation. Make sure the motor
shaft will rotate in that direction. If necessary, reverse the
leads on the motor so that the proper motor direction is
attained.
4.2.3 START-UP
Start the reducer under as light a load as possible. As the
unit is brought up to normal operating speed, check for
unusual noises, excessive vibration, or excessive heat and
oil leakage. If any of these conditions exist, shut down the
unit immediately and determine the cause of the problem.
Refer to
(Page 28) for
assistance.
4.3 POST START-UP CHECKLIST
After approximately forty hours of use, check all
foundation and mounting bolts and tighten as required.
Note: Always recheck alignment after tightening.
The oil used in the initial start-up of a new reducer
should be completely drained and replaced after 500
hours of use. A thorough cleaning of the gear case
using a flushing oil should be performed to remove any
foreign matter during the first oil change.