ZF Repair Manual: ZF220A
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Manuale d'officina /
Workshop manual
ZF 220 A
HEAT EXCHANGER (H.E.) REQUIREMENTS
PERMISSIBLE OIL TEMPERATURE INTO HEAT EXCHANGER IN COUNTERFLOW
Oil grade
Min.
Max.
SAE 30
55°C
85°C
Min. heat transfer capacity (kW/engine rated kW)
(Multiply by 1.25 for fresh water
Continuos duty
0.025
and 2 for row water)
Pleasure craft
0.020
Approx. oli flow to H.E.
5 dm
3
/min. per 1000 engine R.P.M.
Proof test H.E. - use 1.5 + 3 times oil dm
3
/min.
H.E. water pressure rating min. = 1.5 x H.E. inlet water bar
DATA H.E. PURCHASER MUST ALSO TELL VENDOR
State max. water temp. inlet to H.E. - typical - row water 29° C.
Keel cooler water -60° C.
H.E. INSTALLATION & SERVICE REQUIREMENTS
OIL LINES, TRANSMISSION TO H.E. AND SERVICE
(1) Max. velocity in fittings, pipe, hose, hose and tubes 7.4 m/sec.
(2) Hose SAE J517 100R1
(3) Protect lines from mechanical damage. Zinc anodes protect H.E. row water passages from corrosion. Check e replace them frequently.
Pos.
Description
1
Output flange
2
Oil filter plug
3
High pressure gauge connection G 1/8" (counterenginewise)
4
Oil pump
5
Oil pump gauge connection G 1/4"
6
Control valve inlet G 3/8"
7
Oil pump outlet to heat exchanger G 3/8"
8
Selector valve lever
9
Std ZF heat exchanger
10
Oil temperature gauge connection M8x1
11
High pressure gauge connection G 1/8" (enginewise)
12
Heat exchanger oil inlet
13
Oil breather
14
Oil dipstick
15
Oil drain plug M16x1.5
16
Anode
G
Center of gravity
DRAWINGS ASSEMBLY
«ZF 220 A»
DISEGNI DI MONTAGGIO «ZF 220 A»