11
2) Remove the pump head.
3) Rotate the crankshaft to bring the diaphragm clamping bolt out as far as possible.
4) Using a hex wrench, remove the diaphragm clamping bolt; diaphragm cap, and diaphragm.
5) Before installing the diaphragm, rotate the crank shaft until the piston is at the bottom of its stroke.
6) Install the new diaphragm onto the piston tightening the clamping bolt to a torque of 18.5 ft lbs.
7) Insert the edge of the diaphragm into the grooves in the piston sleeve.
8) Replace the head.
Repeat steps 2 thru 8 for each diaphragm being replaced.
Other Maintenance and Adjustments
The environment that the washer/sprayer is used in can be highly corrosive to steel components.
Therefore, to protect painted surfaces, the washer/sprayer should be washed off after each use.
Periodically clean the inlet strainer and the nozzle tips.
The tank hold-down straps should be checked periodically for tightness. Temperature changes,
vibration, and settling of the tank may cause them to loosen. Check the straps with the tank at least 3/4
full. Tighten the straps by tightening the nuts on the bolts that attach the straps to the tank saddle.
Periodically check all hose clamps, fittings, and valves for tightness. Replace worn, cracked, or
leaking hoses.
The spring tension on the hose reel can be adjusted by adding or removing wraps of hose from
the spool. Add wraps to increase tension and remove wraps to decrease tension. Add or remove wraps
one at a time until desired tension is reached.
CAUTION: REEL IS UNDER TENSION. USE EXTREME CAUTION WHEN
ADJUSTING SPRING TENSION. ADJUST WITH LATCHING MECHANISM
ENGAGED.
CAUTION: DO NOT ATTEMPT TO DISMANTLE REEL. A HIGH TENSION
SPRING ASSEMBLY IS CONTAINED WITHIN THE REEL. IMPROPER
REMOVEL OF THE SPRING COULD RESULT IN PERSONAL INJURY AND/
OR REEL DAMAGE.
PUMP SITE GLASS
9) Using a SAE 30W non-detergent oil, refill the pump
through the site glass to the proper level. Rotate the
crankshaft while filling to distribute the oil.
10) Before putting the cap back on the oil site glass, run the
pump with no pressure (raise the control unit pressure
release lever) until all air bubbles are vented.
11) After replacing the cap on the oil site glass, check the oil
level with the pump operating with pressure.
