Maintenance - Graco HFRL Setup And Operation Manual

Maintenance

Maintenance
Task
Change break-in oil in a new unit
Inspect hydraulic and fluid lines
for leaks
If equipped, inspect fluid inlet
strainer screens, page 45
Grease Pumps, Grease Cup
Maintenance Page 49
If equipped, inspect IsoGuard
™
Select fluid level and condition,
refill or replace as needed, page
50
Check hydraulic fluid level
Grease circulation valves with
®
Fusion grease (117773)
Verify operation of air drying sys-
tem to prevent isocyanate crys-
tallization
Inspect air filter (part 24H018),
clean or replace as necessary,
Use compressed air to remove
dust buildup on control boards,
fan, motor (under shield), and
hydraulic oil coolers
Clean up all hydraulic leaks;
identify and repair cause of leak
Clean dispense valve mix cham-
ber ports regularly, see dispense
valve manual
Clean dispense valve check
valve screens, see dispense
valve manual
44
Change Break-in Oil
After initial break-in, see Table 5 for recommended fre-
quency of oil changes.
Schedule
Ambient
After first 250
Temperature
hours of opera-
tion or within 3
0 to 90°F
months, which-
(-17 to 32°C)
ever comes first
90°F and above
Daily
(32°C and above)
Grease Circulation Valves With Fusion
Daily
Grease (117773)
As Needed
Daily
Weekly
Check Hydraulic Fluid Level
Weekly
Check hydraulic fluid level on dipstick. Fluid level must
be between indent marks (IM) on dipstick. Refill as
Weekly
required with approved hydraulic fluid; see Accesso-
ries on page 136. If fluid is dark in color, change fluid
and filter.
Daily
Monthly
As needed
See dispense
valve manual
See dispense
valve manual
Table 2: Frequency of Oil Changes
Recommended
Frequency
1000 hours or 12 months,
whichever comes first
500 hours or 6 months,
whichever comes first
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