2500 Automatic Tank Gauge
64 Installation and Operations Manual
Gauge Head Assembly
Unless otherwise labeled, numbers in parentheses, (12) for example, refer to the item callout
numbers on Figure 8 or Figure 9.
Perform the following steps to reassemble the gauge head. When white silicon grease is called
for, use Dow Corning® #4 or equivalent.
Note Generally, assembly is performed in the reverse order of disassembly.
1. If counter shaft seal
(12) is being replaced, use a clean, small, paint brush, and apply white
silicone grease to the gauge head body seal recess.
2. Carefully press the counter shaft seal into place with cavity facing outwards.
3. If gauge check knob Teflon o-ring
(26) is being replaced, lubricate o-ring with white silicone
grease.
4. Carefully install the gauge check knob o-ring into the inside gauge head body recess.
5. Lubricate Viton o-ring
(22) with white silicone grease, and carefully insert it into the outside
gauge head body groove.
6. Assemble gauge check hair spring
(62) and shim washer (33) on the gauge check assembly
(14).
7. Lubricate the shaft
(60) with white silicone grease, and insert it into the body.
8. Install shim washer
(33) and grip ring (29) to the external shaft projection of the gauge check
assembly
(14).
9. Place gauge check knob
(13) with set screw (42) on the external shaft projection of the gauge
check assembly
(14).
10. Tighten set screw, making sure it contacts the flat edge on the shaft.
11. Turn the knob in ¼-turn intervals to ensure smooth operation.
12. Replace any previous shim washers
(45) on counter shaft assembly (11) and brush the shaft
with white silicone grease. Install counter shaft assembly into the body.
13. Place counter assembly (
21) on supports and loosely install three mounting screws (43). Do
not tighten the screws.
14. Align counter assembly wheels to zero.
15. Install pinion gear
(24) on counter base shaft, locating the 8-tooth side of the gear nearest
the counter base. Mesh the short tooth of the pinion gear into the counter wheel gear.
16. Place dial gear
(5), with registering tab downward, on the counter shaft assembly (11).
• If the dial gear is below the top of the pinion gear, add shim washers (45) under the
counter shaft assembly
(11) as required. If the dial gear is higher than the pinion gear,
remove shim washers from under the counter shaft assembly. If no shim washers are
present, lightly tap the counter shaft assembly with a rubber mallet so that the dial
gear and the pinion gear are level within 0.010".
17. Adjust the dial gear
(5) and the counter assembly (21) for a clearance of approximately
0.010” between the pinion gear
(24) and the dial gear (5).
• These two gears should engage securely, but without any binding. Rotate the dial
gear to check that all gears mesh smoothly and that the counter wheels operate
correctly.
To Next Page
Loading...