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T-305
5. Install one cylinder over piston and into crankcase.
Remember to keep the same cylinder and cylinder
orientation from the removal step.
6. Apply small amount of anti--seize lubricant to cylinder
flange bolt threads. Install cylinder flange bolts to a
tightening torque of 80 lb--in.
7. Install manifold ( Item, 28, Figure 77) into elbows on
cylinder. Tighten manifold nut finger tight.
8. Install second compressor cylinder over piston. Care-
fully align manifold with manifold elbows during instal-
lation. Manifold nuts must clear cylinder flange.
9. Apply small amount of anti--seize lubricant to cylinder
flange bolt threads. Install cylinder flange bolts to a
tightening torque of 80 lb.--in.
10.Install manifold nut onto manifold elbow. Tighten until
nut stops on elbow.
11.Carefully attach filter tube to filter. Tighten with 7/16
open end wrench.
VALVE REPLACEMENT
Disassembly:
1. Remove compressor from container installation to
access the head assembly.
2. Locate crankcase filter (Item 3, Figure 77). Use a
7/16 open--end wrench to completely loosen the nut
of the tube fitting near the crankcase. Carefully re-
move the filter tube from the fitting.
3. Use 15/16 open--end wrench to loosen nuts on man-
ifold elbows ( Item 8) . Loosen all 4 nuts.
4. Mark orientation of head to valve plate and cylinder,
for each head assembly, prior to removal. Use 3/16
socket head wrench to remove 4 socket head cap
screws from one cylinder head. Remove head, valve
plate and valves from the compressor. Discard the
valves and o--ring gaskets. Keep head end valve
plate for reassembly.
5. Remove manifold from compressor. Remove old
manifold sleeves ( Item 9 ) from manifolds.
6. Use 3/16 Allen wrench to remove 4 socket head cap
screws ( Item 6 ) from other cylinder head. Remove
head, valve plate and valves from the compressor.
Discard the valves and o--ring gaskets. Keep head
and valve plate for reassembly.
Inspection:
1. Inspect crankcase filter. If filter appears dirty or
clogged, replace with filter kit.
2. Inspect cylinder wear surface for scoring or
scratches. If scoring is present, replace cylinder.
Assembly:
NOTE
Install one head at a time.
1. Set head on work surface, fin side down. Install Head
Gasket in seal groove on head.
2. Identify alignment hole in head. Locate exhaust
valve. This valve contains one ink dot near valve
alignment hole. Place valve on head with ink dot fac-
ing up. Place valve alignment hole (by ink dot) over
head alignment hole.
3. Install o--rings into grooves on each side of the valve
plate. Lubricate each o--ring with small amount of sili-
cone lubricant.
4. Place the valve plate on the exhaust valve. Notice the
valve plate contains two small holes. Orient the valve
plate to align the hole that is furthest clockwise, with
the exhaust valve and head alignment hole. You may
need to turn the valve plate over to the proper align-
ment.
5. Locate the Inlet valve. This valve contains two ink
dots near the alignment hole. Place the valve on the
valve plate with the ink dots facing up. Place valve
alignment hole (by two ink dots) over head and valve
plate alignment holes.
6. Install new o--ring ( Item 12 ) in top of cylinder groove
7. Install rebuilt head assembly onto cylinder. Remem-
ber to keep the same head orientation from the re-
moval step. It may be helpful to start two (2) screws in
the head assembly to maintain proper alignment.
Hold head assembly firm during installation to keep
o--rings in proper location.
8. Initially install head bolts ( Item 7 ) finger tight. Fully
install head bolts to a tightening torque of 160 lb--in.
NOTE
Confirm nut for manifold elbow is on manifold
prior to installation of sleeves.
9. Install new manifold sleeves ( Item 9 ) on the end of
each manifold.
10. Install manifold into elbows ( Item 8) on headelbows.
Tighten manifold nut finger tight.
11. Repeat valve and o--ring replacement on second
head assembly
12. Using a 15/16 open--end wrench, install manifold nut
onto manifold elbow. Tighten until nut stops on elbow.
13.Install second head assembly onto cylinder, remem-
ber to keep the same orientation from the removal
step. Carefully align manifold with manifold elbows
during installation.
14.Carefully attach filter tube to filter. Tighten with 7/16
open end wrench.
HEAD ASSEMBLY / VALVE REPLACEMENT
Disassembly:
1. Stand unit upright.
2. With motor foot to RIGHT, note indentation marks on
head. Marks will be UP and RIGHT.
3. Use 7/16 open end wrench to completely loosen the
fitting at bottom of head. Use 15/16 wrench to loosen
manifold nuts and 3/16 wrench to loosen 4 head bolts
( Item 6 ).
4. Remove 4 socket head cap screws from one cylinder
head. Remove head, valve plate and valves from the
compressor. Remove filter elbow from head and save
for reassembly. Discard head assembly.
5. Remove old manifold sleeves ( Item 9 ) and nuts from
manifolds
Inspection:
1. Inspect crankcase filter. If filter appears dirty or
clogged, replace with filter kit.
Summary of Contents for 69NT40-489-100 Series
Page 2: ......
Page 4: ......
Page 14: ...Safety 10 T 305...
Page 28: ...4 T 305...
Page 40: ...16 T 305...
Page 50: ...26 T 305 Figure 12 Standard Configuration Report...
Page 112: ...88 T 305...
Page 164: ...140 T 305...
Page 167: ...143 T 305 Based on drawings 62 10526 Rev and 62 10736 Rev Figure 90 Electrical Schematic CA...
Page 174: ...150 T 305...