![background image](http://html1.mh-extra.com/html/eaton/150dhp-vr/150dhp-vr_instruction-handbook-manual_524728041.webp)
41
Instruction Book
IB182017EN February 2017 www.eaton.com
5kV, 7.5kV, & 15kV DHP-VR
Replacement Circuit Breaker
Figurt 6.15. Dtttrmining tht Distanct Travtltd
Figurt 6.16. Illustrativt Ttsting Tapt Samplt
Figurt 6.14. Evaluatt tht CloSurt™ Ptrformanct
6.9 LUBRICATION
All parts that require lubrication have been lubricated during the
assembly with molybdenum disulphide grease. Eaton No. 53701QB.
Over a period of time, this lubricant may be pushed out of the
way or degrade. Proper lubrication at regular intervals is essential
for maintaining the reliable performance of the mechanism.
Tht
brtaktr should bt rtlubricattd onct a ytar or ptr tht optrations
tablt (Tablt 6.2), which tvtr comts first.
The locations shown in
Figure 6.17 should be lubricated with a drop of light machine oil.
After lubrication, operate the breaker several times manually and
electrically.
Roller bearings are used on the pole shaft, the cam shaft, the
main link and the motor eccentric. These bearings are packed at
the factory with a top grade slow oxidizing grease which normally
should be effective for many years. They should not be disturbed
unless there is definite evidence of sluggishness, dirt or parts are
dismantled for some reason.
If it becomes necessary to disassemble the mechanism, the
bearings and related parts should be thoroughly cleaned, remove old
grease in a good grease solvent. Do not use carbon tetrachloride.
They should then be washed in light machine oil until the cleaner is
removed. After the oil has been drawn off, the bearings should be
packed with Eaton Grease 53701 QB or equivalent.
Tablt 6.2. Lubrication Ptr Numbtr of Optrations
RATINGS
OPERATIONS
29kA and below
Above 29kA
3000 Amp
750
400
400
Da
te / # o
f B
re
ak
er O
pe
ra
tio
ns / C
lo
Su
re
TM
D
is
ta
nce
"X" Inches
CloSure
TM
Distance
*Note: Use the center of
the marker diameter to
determine "X" distance
*Figure not to scale
8.0 to 10
Inches
5
3/
16
"
A
pp
rox
Figurt 6.17. Gtntral Lubrication Artas
Apply one drop of non-synthetic
light machince oil at locations shown.