Preventative maintenance check-list – Sun Pumps SIJ 2.2-1300P-135 BL User Manual
Page 18
Table 2
HOSE FRICTION LOSS
Pressure Drop In PSI Per 100 Feet Of Hose
Flow Rate
Hose Inside Diameters
GPM
1/4"
5/16"
3/8"
1/2"
5/8"
3/4"
1"
0.5
16
5
2
1
54
20
7
2
2
180
60
25
6
2
3
380
120
50
13
4
2
4
220
90
24
7
3
5
320
130
34
10
4
6
220
52
16
7
1
8
300
80
25
10
2
10
120
38
14
3
15
80
30
7
20
12
25
19
Table 3
Preventative Maintenance Check-List
Check
Daily
Weekly
50 Hours
500 Hours
1500 Hours
3000 Hours
Clean Filters
X
Oil Level/Quality
X
Oil Leaks
X
Water Leaks
X
Belts, Pulley
X
Plumbing
X
Initial Oil Change
X
Oil Change
X
Seal Change
X
Valve Change
X
Accessories
X
Each system’s maintenance cycle will be exclusive. If system performance decreased, check immediately.
If no wear at 1500 hours, check again at 2000 hours and each 500 hours until wear is observed. Valves
typically require changing every other seal change.
Duty cycle, temperature, quality of pumped liquid and inlet feed conditions all effect the life of pump
wear parts and service cycle so adjust to fit.
Remember to service the regulator/unloader at each seal servicing and check all system accessories and
connections before resuming operation.