GL16 Preventive Maintenance
4-15
Required Tools
wrench, Allen wrench, funnel, oil
pan, SAE 140 grade gear oil
4.4 Semi-Annual PM
WARNING
Do not repair or correct any
of these conditions without
reading and understanding
the REPAIR chapter.
Only QUALIFIED
PERSONNEL should
troubleshoot and repair
this unit.
Make sure that the machine
is completely cooled down
and that power is
disconnected at the external
disconnect switch before
servicing the unit.
Check/Clean Gas Regulator Vent
The gas regulator must “breathe” in order to
operate properly and safely. A vent restrictor is
installed on the vent of the regulator to allow it to
breathe and limit any escape of gas if the regulator
fails.
If the vent or vent restrictor become plugged,
burner ignition flame failure and/or improper unit
operation can occur.
WARNING
Only QUALIFIED
PERSONNEL should
troubleshoot and
repair the gas regulator.
Remove the gas regulator and refer to the
following guidelines:
• Clean the vent restrictor.
• Inspect the vent pipes/tubes for
obstructions. Replace any that may be
plugged, pinched, crimped, or otherwise
damaged.
Perform only when the unit is OFF
(with power disconnected) and COOL.
For more information within this manual on
the gas regulator, go back to the
INSTALLATION chapter, Installation
Procedures section,
Gas Connection
procedure, Venting the Installed Regulator sub-
section.
Check Gas Pressure
It is important to check the available gas
pressure to the unit during periods of peak demand
by other gas-heated equipment in the laundry
room or elsewhere at the facility. Gas pressure
to the unit may be reduced significantly at these
times, which will interfere with the proper
operation of the burner.
For more information within this manual on
checking the gas pressure, go back to the
INSTALLATION chapter, Installation
Procedures section,
Gas Connection
Checkout procedure.
Change Oil in Gear Reduction Units
Change the oil in the gear reduction units using
a good quality SAE 140 grade gear oil.
1. Turn the power OFF at the main discon-
nect switch.
2. Open the right end frame door.
3. Remove the fill plug (Figure 4-19, A) to
allow air to enter.
4. Place an oil pan under the drain plug
(Figure 4-19, B) and then remove the
drain plug.
5. Drain all the oil from the gear reduction
unit.
6. Install the drain plug.
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