Maintenance - Graco HFR Setup And Operation Manual

Maintenance

Task
Change break-in oil in a new unit
Inspect hydraulic and fluid lines
for leaks
Inspect fluid inlet strainer
screens, page 56
Inspect IsoGuard Select fluid
level and condition, refill or
replace as needed, page 57
Check hydraulic fluid level
Grease circulation valves with
Fusion grease (117773)
Verify operation of air drying sys
tem to prevent isocyanate crystal
lization
Verify vent holes on bottom of
electrical cabinet are clear and
unobstructed
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; iden
tify 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
313997ZAA
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)
Daily Grease Circulation Valves With Fusion
Grease (117773)
Daily
Weekly
Weekly
Weekly
Check Hydraulic Fluid Level
Check hydraulic fluid level on dipstick (DS). Fluid level
Weekly
must be between indent marks (IM) on dipstick. Refill as
required with approved hydraulic fluid; see Technical
Data on page 108. 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
DS
24C352_313998_1
Maintenance
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IM
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