Maintenance
Lubrication
• SAE 90 oil is recommended in the body of the pump
• The oil level can be seen in the port provided in the pump’s casing
• The oil must be changed between 6 and 12 months depending on usage
• Check the oil level every 30 to 60 days, topping–up as necessary. The capacity
of the body casting is:
ZM44 – MAXXI
= 1,2 litres,
ZM 38/51/63 – MAXXI
= 2 litres,
ZM 76/95 – MAXXI
= 3 litres
Fixing
• Check the tightness of the pump and its fixings every 60 days
Explanation of the tables
• Pumps are manufactured in the normal versions shown in the green rows of the tables
• The elevation column indicates the maximum water head possible in Meters of Water Column
• The water flow specified in the tables refers to a 24 hours production cycle
• All the models have a extra stroke of the piston, that is used in situations where the customer has land with a small
elevation and a large quantities of water and where it is possible to use efficiently the equipment referring to the extra
column of the annex tables
Maximum elevation: 300m
Maximum elevation: 190m
Maximum elevation: 200m
Maximum elevation: 200m
ZM 38 MAX 1
Production by revolutions and pump stroke
Stroke
20 r.p.m.
30 r.p.m.
40 r.p.m.
50 r.p.m.
Elevation
Extra
6,230
9,340
12,460
15,570
200m
Normal
5,250
7,800
10,500
13,000
220m
A
4,500
6,880
8,000
11,400
240m
B
3,900
5,800
7,500
9,600
260m
C
3,200
4,900
6,500
8,200
280m
D
2,200
3,400
4,500
5,700
300m
ZM 44 MAX 1
Production by revolutions and pump stroke
Stroke
20 r.p.m.
30 r.p.m.
40 r.p.m.
50 r.p.m.
Elevation
Extra
5,200
7,800
10,400
13,000
130m
Normal
4,300
6,400
8,600
10,800
150m
A
3,400
6,100
6,900
8,600
170m
B
2,600
3,900
5,200
6,400
190m
ZM 51 MAX 1
Production by revolutions and pump stroke
Stroke
20 r.p.m.
30 r.p.m.
40 r.p.m.
50 r.p.m.
Elevation
Extra
10,600
16,000
21,000
26,600
140m
Normal
9,000
13,300
18,000
22,200
160m
A
8,000
11,700
15,600
20,000
170m
B
6,800
10,000
13,700
17,000
180m
C
5,700
8,300
11,200
14,000
190m
D
3,600
5,800
7,800
10,000
200m
ZM 76 MAX 1
Production by revolutions and pump stroke
Stroke
20 r.p.m.
30 r.p.m.
40 r.p.m.
50 r.p.m.
Elevation
Extra
31,500
47,250
63,000
78,700
130m
Normal
27,500
41,300
55,000
68,700
150m
A
23,600
35,400
47,200
59,000
160m
B
19,600
29,500
39,300
49,100
170m
C
15,750
23,600
31,500
39,300
200m
