Etnyre Black-Topper BT-1 Distributors 2008, Updates & Service Material

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5
Servicing Asphalt Pump Shaft Packing
*Note: Packing on this application, is allowed to
seep which lubricates the Pump Shaft. Tightening it
to the point of it not seeping anymore, will cause the
packing to overheat and eventually leak worse.
(Do Not Overtighten)
1. Remove the shield protecting the pump shaft drive
coupling.
2. Remove the (2) Lock nuts securing the 2 piece
packing gland. (Sometimes if Drive Coupling is
installed too close to the Asphalt Pump asm there is
not enough room to remove the lock nuts causing the
removal of drive coupling to gain access to re-pack
the pump shaft).
3. Remove Pump Shaft Drive Coupling (if Necessary).
4. Remove the lock nuts, locking plates and packing
glands to allow access to remove packing.
5. Remove Packing (preferred) to install new.
6. Soak new packing in motor oil.
7. Install new packing, rotating joints as you install
pieces and it should hold (4-5) pieces of packing
# 6600310.
8. Install Packing Glands and secure with locking plates
and lock nuts (Tighten nuts evenly to keep the
Glands in line with the shaft. (Do Not Overtighten)
9. Install the Coupling, if it was removed
(*Note see
torque spec. instructions in component illustrated
breakdown section.)
10. Install shield. (Torque gear box mounting bolts to
25 ft/lbs).
11. Re-tighten if needed.
(*Note See an illustrated break
down of Asphalt Pump & shaft in component
Illustrated breakdown section).
Servicing 4-way Valve Packing
1. Make sure 4-way Valve keyway is in the (12 o’clock)
position before removing anything.
2. Remove Rotary Actuator for (Bar Circ) the one
mounted to the bracket @ rear location (Make note of
mounting location or take pictures to insure
installation is correct).
3. Remove front (Spray) Rotary Actuator from shaft of
4-way Valve.
4. Loosen and remove (2) Nuts & washer securing the
spring & packing.
5. Remove the packing that is remaining (Replace
packing - Do Not Add to what is left).
6. Soak new packing in motor oil, Install (3) new pieces
of Packing # 3340029, rotating the joints as they are
installed. Install spring, # 3341464 (if new is needed).
Install washer # 0197070 (1-3/8) if not previously
installed to complete the installation and update the
4-way valve to current configuration.
7. Install first nut and tighten up tight to the housing,
then back off ¼ turn. This will allow valve to turn,
but not Move (In & Out) which will allow oil to
flow the wrong direction and by-pass valve causing
it to spray light by returning material to tank or flow
into the bar when you do not want it there.
8. Install the Second nut and secure the first (lock
together tightly) Make sure you can still rotate and
turn 4-way with wrenches before installing actuators.
9. Install the key and coupling (make sure they fit tight)
could affect the accuracy of the timing.
10. Install Spray Actuator in original position.
11. Install and insert Bar Circ Actuator into Spray
Actuator, should be in the same position of
orientation as the Spray Actuator and secure and
torque to (20ft/lbs) with mounting bolts to the
bracket. (Go to Installation of Actuators page if needed)
12. Check Timing of 4-way Valve (Go to Adjusting
4-way timing procedure if adjustment if needed)
13.Test 4-way operations / Load (12 o’clock) Bar Circ
(9 o’clock) & Spray (6 o’clock) the less margin of
Timing errors, the better the 4-way Valve and
distributor will perform.
(*Note See an illustrated break down of 4-way Valve &
Actuators in component Illustrated breakdown section)
SER
VICE &
ADJUSTMENT PROCEDURES