Miller Flowmax, Owner'S Manual

Page: 13 / 20

OM-248 626 Page 9
SECTION 6 − MAINTENANCE & TROUBLESHOOTING
6-1. Routine Maintenance
!
Disconnect power
before maintaining.
n = Check Z = Change ~ = Clean

= Repair l = Replace
* To be done by Factory Authorized Service Agent
Every
3
Months
~ Coolant Filter, durning heavy
service, clean more frequently.
~ Blow out heat exchanger fins.
n Check coolant level. Top off with
distilled or deionized water if necessary.
Every
6
Months
nl Hoses
nl Labels
Z Replace coolant.
Change
Coolant (If
Using Water)
Every
12
Months
Z
Replace coolant.
Change
Coolant (If
Using 043 809
or 043 810
Coolant)
3/8 in.
Tools Needed:
6-2. Coolant Maintenance
801 189-C / 803 557-A
1 Coolant Filter
Unscrew housing to clean filter.
Changing coolant: Drain coolant by
tipping unit forward. Fill with clean
water and run for 10 minutes. Drain
and refill.
.
If replacing hoses, use hoses
compatible with ethylene gly-
col, such as Buna-n, Neo-
prene, or Hypalon. Oxy-acety-
lene hoses are not compatible
with any product containing
ethylene glycol.
1
6-3. Troubleshooting
Trouble Remedy
Coolant system does not work. Be sure input power cord is plugged in to energized receptacle.
Check line fuses or circuit breaker, and fuses F1, F2 if applicable, and replace or reset if necessary.
Motor overheated. Unit starts running when motor has cooled.
Have Factory Authorized Service Agent check Power switch S1 and motor (Mot).
Decreased or no coolant flow. Add coolant.
Check for clogged hoses or coolant filter. Clean filter or clean / replace hoses if necessary.
Disconnect pump, and check for sheared coupling. Replace coupling if necessary.