MEGA Corp. MAC-INSP-RSP-5 - Manual (Page 13)

MAC/MAT-INSP-RSP-5
4 Feb 2014
SECTION 2
Scheduled Maintenance Inspections
2-4
STEP
M-4, M-4B WATER PUMP SYSTEM
150 HRS
(WEEKLY)
250 HRS
(BI‐WEEKLY)
500 HRS
(MONTHLY)
1,000 HRS
(QUARTERLY)
5,000 HRS
(ANNUALLY)
MANHOURS
PER
INSPECTION
TOTAL
ANNUAL
MANHOURS
1
Remove water pump from unit and check:
water pump impeller retaining bolt/nut
for security and for damage or contact to
the impeller, impeller keyways for wear
and security, shaft bearings for signs of
heating and wear, drive end shaft keyways
for signs of damage and heating and seals
for security, damage and over or under
lubrication. Check volute case for damage
or contact. Check both of the impeller
wear rings for damage and excessive wear
(0.020” or 0.5 mm nominal tolerance)
Check packing mount for security.
(Disassembly of water pump is required to
perform these maintenance operations).
Repair as required.
X
5 5
2A
(This Step For M‐4 Pump Only) Check
shaft seals for excessive lubricant leakage
and water leakage. Lubricate water pump
with a manual grease gun only. When
lubricating the drive motor side shaft
bearing and the impeller end bearing,
apply 16 to 20 squirts (injections) of
grease (2 fl. oz. or 60 cc) to each. Apply 4
or 5 squirts (injections) of grease to
lantern ring grease fitting. Adjust, repair
or replace as required.
X
0.3 6
2B
(This Step For M‐4B Pump Only) Check
shaft seals for excessive lubricant leakage
and water leakage. When lubricating,
apply 5.5 fl oz (150 cc) of grease to the
drive end bearing and 2.5 fl oz (75 cc) of
grease to the impeller end bearing.
Adjust, repair or replace as required.
X
6
3
Check water pump and drive motor for
leaks, excessive vibration/noise leaks and
evidence of excessive heating. Repair as
required.
X
0.3 6
4
Check rope seals for excessive water
leakage, compression, wear and
overheating. Adjust rope packing seal
packing gland or replace rope packing
seals as required.
X
0.3 6
5
Check water pump inlet and discharge
piping for security, leakage and
misalignment. Repair leaks as required.
X
0.2 2
25 Total