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IOM BiRotor 3” to 6” R03
3. Replace gear box assembly (Item 5) gasket (Item 7
and 55) and front bearing cap (item 6). Secure the
above on the 3T rotor with screws (item 8) and
washers (Item 36). The bearing cap will attach to
the end plate over the 4T rotor with screws (Item
35) and washers (Item 36).
NOTE:
The gear box assembly must mate correctly with
the connection on the 3T rotor.
Measuring unit 203505-030 and 223505-030,
refer to Figure 6-3.
1. Replace gear box assembly (Item 5), gasket (item
24) and secure with screws (Item 22).
2. Replace front bearing caps (Item 6), gasket (Item
7) and secure with screws and washers (Items 38
and 8).
3. 3. Attach piping to the measuring unit (Item 23,
Fig. 6-5).
4. Connect the measuring unit (Item 35) to the end
cover (item 1) with socket head screws (Items 36,
Figure 4-17). Replace meter housing (Item 4) and
0-ring (Item 5). Secure with nuts and bolts (items
2 and 3, Figures 4-18 and 4-19).
NOTE:
A light fi lm of grease will aid in holding O-ring in
place.
5. Replace static seal tube (Item 19) with attached
0-ring (Item 20).
6. Replace the counter base plate (item 6).
NOTE:
Rotate the coupling tube on the pinion shaft as-
sembly of the counter base plate assembly (Item
6) until the drive pin is positioned the same as the
slot of the coupling jaw on the gear box assembly.
7. Replace tubing and connect the APL unit (Item
23) to meter housing.
8. Reinstall
other accessories.
9. Refi ll APL unit with lubricating oil.
11.11 Filling APL Unit with Lubricating Oil
(refer to Figure 6-6)
Lubricating oil used in the APL unit should be a good
quality SAE ten weight non-detergent oil. Select a
hand oil pump with a mating connection able to con-
nect to the alemite fi tting (Item 7) on the APL unit.
1. Connect oil pump to alemite fi tting (Item 7) on the
APL unit. Open the needle valve (Item 6).
2. Fill the APL unit until the external relief valve
(Item 12) opens and allows lubricating oil to be
expelled to the atmosphere.
NOTE:
The APL unit can be fi lled with lubricating oil
wether the meter system is in service or not.
3. Close relief valve (Item 12) and disconnect oil
pump from alemite fi tting (item 7).
NOTE:
The indication rod is now at the bottom mark
groove located on the hydraulic cylinder (Item 1).
This indicates that the APL unit is full of lubricat-
ing oil. When the indication rod is located near the
top mark groove on the hydraulic cylinder (Item 1)
the APL unit is low of lubricating oil and should be
refi lled as described above.