Graco LubeMaster, Instructions Manual

Page: 22 / 44

Maintenance and Repair
22 3A2781A
10-Watt Low-Level Assembly Options
Refer to F
IG
. 17 for reference numbers used in the fol-
lowing instructions.
No maintenance is required on the 10 watt low-level
assemblies used on oil reservoirs.
If the oil level runs low and the assembly fails to perform
as required the unit may have to be disassembled to
replace a defective and switch. Before disassembling,
check all electrical connections to make sure they are
secure and check for any physical obstructions prevent-
ing the float from operating.
Disassembly
1. Relieve pressure and disconnect all electrical power
and air supplies to the lube system.
2. Disconnect two 22 AWG wires from the top of the
adapter (304k).
3. Disconnect adapter (304k) from the conduit.
4. Remove the cover (9) from the reservoir (11).
5. Unscrew coupler (304m) from adapter (304k). Use
caution to not twist the wires too much.
6. Unscrew coupler (1304m) from coupling (304n).
7. Unscrew coupling (304n) from switch (304p).
8. Unscrew adapter (304k) from the reservoir cover
(9).
Assembly
The following procedure is used for installing a new
assembly in a reservoir. If your assembly was removed
for repairs, steps 1 and 2 do not apply.
1. Remove the cover (9) from the reservoir (11).
2. Remove the 1/4 inch pipe plug from the cover.
Screw adapter (304k) in and tighten it securely.
3. Guide two 22 AWG wires from switch (304p)
through coupling (304n).
4. Screw coupling (304n) onto switch (304p) and
tighten securely.
5. Guide two 22 AWG wires through coupler (304m).
6. Screw coupler (304m) into coupling (304n).
7. Guide two 22 AWG wires through adapter (304h).
8. Screw coupler (304m) into adapter (304k). Use cau-
tion to not to twist the wires too much.
9. Tighten the connection.
10. Connect switch (304p) in accordance with local
electrical codes.
F
IG
. 17
304k
304m
304n
304p
9