Change Pump Lubricant; Change Hydraulic Fluid And Filter - Graco Reactor 2 Repair Parts

Change Pump Pump Lubricant Lubricant
Change Change Pump Lubricant
Check the condition of the ISO pump lubricant
daily. Change the lubricant if it becomes a gel,
its color darkens, or it becomes diluted with
isocyanate.
Gel formation is due to moisture absorption
by the pump lubricant. The interval between
changes depends on the environment in
which the equipment is operating. The pump
lubrication system minimizes exposure to
moisture, but some contamination is still
possible.
Lubricant discoloration is due to continual
seepage of small amounts of isocyanate past
the pump packings during operation. If the
packings are operating properly, lubricant
replacement due to discoloration should not be
necessary more often than every 3 or 4 weeks.
To change pump lubricant:
1. Follow Pressure Relief Procedure, page
2. Lift the lubricant reservoir (LR) out of the
bracket (RB) and remove the container from
the cap. Holding the cap over a suitable
container, remove the check valve and allow
the lubricant to drain. Reattach the check
valve to the inlet hose.
3. Drain the reservoir and flush it with clean
lubricant.
4. When the reservoir is flushed clean, fill with
fresh lubricant.
5. Thread the reservoir onto the cap assembly
and place it in the bracket.
6. Push the larger diameter supply (ST) tube
approximately 1/3 of the way into the
reservoir.
7. Push the smaller diameter return tube (RT)
into the reservoir until it reaches the bottom.
NOTE: NOTE: The return tube must reach the NOTE:
bottom of the reservoir to ensure that
isocyanate crystals will settle to the bottom
and not be siphoned into the supply tube
and returned to the pump.
334946J
8. The lubrication system is ready for operation.
No priming is required.
Figure 1 Pump Lubrication System
Change Hydraulic Hydraulic Fluid
Change Change Hydraulic
49.
NOTE: Change break-in oil in a new system
NOTE: NOTE:
after the first 250 hours of operation or within 3
months, whichever comes first.
Table Table 2 2 2 Frequency Table Frequency Frequency of of of Oil
Ambient Temperature Temperature
Ambient Ambient Temperature
0 to 90°F
(-17 to 32°C)
90°F and above
(32°C and above)
1. Follow Pressure Relief Procedure, page
2. Allow hydraulic fluid to cool.
Repair
Fluid and and Filter Filter
Fluid and Filter
Oil Changes Oil Changes Changes
Recommended
Recommended Recommended
Frequency
Frequency Frequency
1000 hours or 12
months, whichever
comes first
500 hours or 6
months, whichever
comes first
49.
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