BIM 1011/2005/03
10
www.nord.com
TROUBLE SHOOTING
PROBLEM WITH THE REDUCER
POSSIBLE CAUSES
SUGGESTED REMEDY
Overloading
Load exceeds the capacity of the
reducer
Check rated capacity of reducer, replace
with unit of sufficient capacity or reduce
load
Insufficient lubrication
Check lubricant level and adjust up to
recommended levels
Excessive lubrication
Check lubricant level and adjust down to
recommended levels
Runs Hot
Improper lubrication
Wrong lubrication
Flush out and refill with correct lubricant as
recommended
Weak mounting structure
Inspect mounting of reducer. Tighten loose
bolts and/ or reinforce mounting and
structure
Loose foundation bolts
Loose hold down bolts
Tighten bolts
Worn RV Disc
Overloading unit may result in
damage to disc
Disassemble and replace disc. Recheck
rated capacity of reducer.
May be due to lack of lubricant
Replace bearing. Clean and flush reducer
and fill with recommended lubricant.
Failure of Bearings
Overload
Check rated capacity of reducer.
Runs Noisy
Insufficient Lubricant
Level of lubricant in the reducer not
properly maintained.
Check lubricant level and adjust to factory
recommended level.
Overloading of reducer can cause
damage.
Replace broken parts. Check rated capacity
of reducer.
Internal parts are broken
Key missing or sheared off on input
shaft.
Replace key.
Output Shaft
Does Not Turn
Coupling loose or disconnected.
Properly align reducer and coupling.
Tighten coupling.
Worn Seals
Caused by dirt or grit entering seal.
Replace seals. Autovent may be clogged.
Replace or clean.
Overfilled reducer.
Check lubricant level and adjust to
recommended level.
Autovent clogged.
Clean or replace, being sure to prevent any
dirt from falling into the reducer.
Oil Leakage
Improper mounting position, such as
wall or ceiling mount of horizontal
reducer.
Check mounting position. Name tag & verify
with mounting chart in manual.
