ZF Repair Manual: ZF63A, ZF63, ZF80A, ZF80-1A
<< Previous of 84 Next >>5. CONTROL BLOCK
Unscrew allen head bolts (item 1, Fig. 5-1)
Pull control block (item 2, Fig. 5-1) together with seal
(item 3, Fig. 5-1) off the input shaft.
Remove key (item 4, Fig. 5-1) from input shaft (item 5,
Fig. 5-1).
FIG. 5-1
5.1 Neutral Safety Switch
Unscrew neutral safety switch (item 1, Fig. 5-2).
Note: Use 7/8 inch wrench for hex bolts.
To reassemble switch:
tightening torque: 25 Nm (18.5 ft.lb.)
FIG. 5-2
5.2 Neutral Safety Switch Check
To check for proper operation of the switch perform one
of the following tests:
A: Ohm meter
Connect the ohm meter leads to the terminal connection
of the switch.
With the pin (item 1a Fig. 5-3) extended you should get a
reading, indicating a good switch.
Compressing the pin (item 1b Fig. 5-3) you should have
«O» reading,
B: 12 volt light
Connect the neutral safety switch with a light in series to
a 12 volt battery. The switch is good when the light goes
out when the center pin (item 1b Fig. 5-3) is compressed.
FIG. 5-3
11
Repair Manual and Spare Parts List
Section 3: Disassembly
1
2
3
4
1
1
a
1
b
Battery 12 V DC
Lamp 8.4 A
Battery 12 V DC
Lamp 8.4 A
Neutral
position
AorB
position
Battery 12 V DC
Lamp 8.4 A
Battery 12 V DC
Lamp 8.4 A
Neutral
position
AorB
position